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3161 lines
110 KiB
3161 lines
110 KiB
=head1 NAME
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perldiag - various Perl diagnostics
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=head1 DESCRIPTION
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These messages are classified as follows (listed in increasing order of
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desperation):
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(W) A warning (optional).
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(D) A deprecation (optional).
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(S) A severe warning (mandatory).
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(F) A fatal error (trappable).
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(P) An internal error you should never see (trappable).
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(X) A very fatal error (nontrappable).
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(A) An alien error message (not generated by Perl).
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Optional warnings are enabled by using the B<-w> switch. Warnings may
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be captured by setting C<$SIG{__WARN__}> to a reference to a routine that
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will be called on each warning instead of printing it. See L<perlvar>.
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Trappable errors may be trapped using the eval operator. See
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L<perlfunc/eval>.
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Some of these messages are generic. Spots that vary are denoted with a %s,
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just as in a printf format. Note that some messages start with a %s!
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The symbols C<"%(-?@> sort before the letters, while C<[> and C<\> sort after.
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=over 4
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=item "my" variable %s can't be in a package
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(F) Lexically scoped variables aren't in a package, so it doesn't make sense
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to try to declare one with a package qualifier on the front. Use local()
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if you want to localize a package variable.
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=item "my" variable %s masks earlier declaration in same %s
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(W) A lexical variable has been redeclared in the current scope or statement,
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effectively eliminating all access to the previous instance. This is almost
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always a typographical error. Note that the earlier variable will still exist
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until the end of the scope or until all closure referents to it are
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destroyed.
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=item "no" not allowed in expression
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(F) The "no" keyword is recognized and executed at compile time, and returns
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no useful value. See L<perlmod>.
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=item "use" not allowed in expression
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(F) The "use" keyword is recognized and executed at compile time, and returns
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no useful value. See L<perlmod>.
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=item % may only be used in unpack
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(F) You can't pack a string by supplying a checksum, because the
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checksumming process loses information, and you can't go the other
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way. See L<perlfunc/unpack>.
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=item %s (...) interpreted as function
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(W) You've run afoul of the rule that says that any list operator followed
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by parentheses turns into a function, with all the list operators arguments
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found inside the parentheses. See L<perlop/Terms and List Operators (Leftward)>.
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=item %s argument is not a HASH element
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(F) The argument to exists() must be a hash element, such as
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$foo{$bar}
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$ref->[12]->{"susie"}
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=item %s argument is not a HASH element or slice
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(F) The argument to delete() must be either a hash element, such as
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$foo{$bar}
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$ref->[12]->{"susie"}
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or a hash slice, such as
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@foo{$bar, $baz, $xyzzy}
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@{$ref->[12]}{"susie", "queue"}
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=item %s did not return a true value
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(F) A required (or used) file must return a true value to indicate that
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it compiled correctly and ran its initialization code correctly. It's
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traditional to end such a file with a "1;", though any true value would
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do. See L<perlfunc/require>.
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=item %s found where operator expected
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(S) The Perl lexer knows whether to expect a term or an operator. If it
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sees what it knows to be a term when it was expecting to see an operator,
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it gives you this warning. Usually it indicates that an operator or
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delimiter was omitted, such as a semicolon.
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=item %s had compilation errors
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(F) The final summary message when a C<perl -c> fails.
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=item %s has too many errors
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(F) The parser has given up trying to parse the program after 10 errors.
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Further error messages would likely be uninformative.
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=item %s matches null string many times
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(W) The pattern you've specified would be an infinite loop if the
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regular expression engine didn't specifically check for that. See L<perlre>.
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=item %s never introduced
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(S) The symbol in question was declared but somehow went out of scope
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before it could possibly have been used.
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=item %s syntax OK
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(F) The final summary message when a C<perl -c> succeeds.
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=item %s: Command not found
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(A) You've accidentally run your script through B<csh> instead
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of Perl. Check the #! line, or manually feed your script into
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Perl yourself.
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=item %s: Expression syntax
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(A) You've accidentally run your script through B<csh> instead
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of Perl. Check the #! line, or manually feed your script into
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Perl yourself.
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=item %s: Undefined variable
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(A) You've accidentally run your script through B<csh> instead
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of Perl. Check the #! line, or manually feed your script into
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Perl yourself.
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=item %s: not found
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(A) You've accidentally run your script through the Bourne shell
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instead of Perl. Check the #! line, or manually feed your script
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into Perl yourself.
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=item (in cleanup) %s
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(W) This prefix usually indicates that a DESTROY() method raised
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the indicated exception. Since destructors are usually called by
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the system at arbitrary points during execution, and often a vast
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number of times, the warning is issued only once for any number
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of failures that would otherwise result in the same message being
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repeated.
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Failure of user callbacks dispatched using the C<G_KEEPERR> flag
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could also result in this warning. See L<perlcall/G_KEEPERR>.
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=item (Missing semicolon on previous line?)
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(S) This is an educated guess made in conjunction with the message "%s
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found where operator expected". Don't automatically put a semicolon on
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the previous line just because you saw this message.
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=item B<-P> not allowed for setuid/setgid script
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(F) The script would have to be opened by the C preprocessor by name,
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which provides a race condition that breaks security.
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=item C<-T> and C<-B> not implemented on filehandles
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(F) Perl can't peek at the stdio buffer of filehandles when it doesn't
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know about your kind of stdio. You'll have to use a filename instead.
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=item C<-p> destination: %s
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(F) An error occurred during the implicit output invoked by the C<-p>
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command-line switch. (This output goes to STDOUT unless you've
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redirected it with select().)
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=item 500 Server error
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See Server error.
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=item ?+* follows nothing in regexp
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(F) You started a regular expression with a quantifier. Backslash it
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if you meant it literally. See L<perlre>.
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=item @ outside of string
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(F) You had a pack template that specified an absolute position outside
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the string being unpacked. See L<perlfunc/pack>.
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=item accept() on closed fd
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(W) You tried to do an accept on a closed socket. Did you forget to check
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the return value of your socket() call? See L<perlfunc/accept>.
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=item Allocation too large: %lx
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(X) You can't allocate more than 64K on an MS-DOS machine.
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=item Applying %s to %s will act on scalar(%s)
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(W) The pattern match (//), substitution (s///), and transliteration (tr///)
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operators work on scalar values. If you apply one of them to an array
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or a hash, it will convert the array or hash to a scalar value -- the
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length of an array, or the population info of a hash -- and then work on
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that scalar value. This is probably not what you meant to do. See
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L<perlfunc/grep> and L<perlfunc/map> for alternatives.
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=item Arg too short for msgsnd
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(F) msgsnd() requires a string at least as long as sizeof(long).
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=item Ambiguous use of %s resolved as %s
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(W)(S) You said something that may not be interpreted the way
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you thought. Normally it's pretty easy to disambiguate it by supplying
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a missing quote, operator, parenthesis pair or declaration.
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=item Ambiguous call resolved as CORE::%s(), qualify as such or use &
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(W) A subroutine you have declared has the same name as a Perl keyword,
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and you have used the name without qualification for calling one or the
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other. Perl decided to call the builtin because the subroutine is
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not imported.
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To force interpretation as a subroutine call, either put an ampersand
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before the subroutine name, or qualify the name with its package.
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Alternatively, you can import the subroutine (or pretend that it's
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imported with the C<use subs> pragma).
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To silently interpret it as the Perl operator, use the C<CORE::> prefix
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on the operator (e.g. C<CORE::log($x)>) or by declaring the subroutine
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to be an object method (see L<attrs>).
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=item Args must match #! line
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(F) The setuid emulator requires that the arguments Perl was invoked
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with match the arguments specified on the #! line. Since some systems
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impose a one-argument limit on the #! line, try combining switches;
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for example, turn C<-w -U> into C<-wU>.
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=item Argument "%s" isn't numeric%s
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(W) The indicated string was fed as an argument to an operator that
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expected a numeric value instead. If you're fortunate the message
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will identify which operator was so unfortunate.
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=item Array @%s missing the @ in argument %d of %s()
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(D) Really old Perl let you omit the @ on array names in some spots. This
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is now heavily deprecated.
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=item assertion botched: %s
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(P) The malloc package that comes with Perl had an internal failure.
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=item Assertion failed: file "%s"
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(P) A general assertion failed. The file in question must be examined.
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=item Assignment to both a list and a scalar
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(F) If you assign to a conditional operator, the 2nd and 3rd arguments
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must either both be scalars or both be lists. Otherwise Perl won't
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know which context to supply to the right side.
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=item Attempt to free non-arena SV: 0x%lx
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(P) All SV objects are supposed to be allocated from arenas that will
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be garbage collected on exit. An SV was discovered to be outside any
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of those arenas.
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=item Attempt to free nonexistent shared string
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(P) Perl maintains a reference counted internal table of strings to
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optimize the storage and access of hash keys and other strings. This
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indicates someone tried to decrement the reference count of a string
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that can no longer be found in the table.
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=item Attempt to free temp prematurely
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(W) Mortalized values are supposed to be freed by the free_tmps()
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routine. This indicates that something else is freeing the SV before
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the free_tmps() routine gets a chance, which means that the free_tmps()
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routine will be freeing an unreferenced scalar when it does try to free
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it.
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=item Attempt to free unreferenced glob pointers
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(P) The reference counts got screwed up on symbol aliases.
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=item Attempt to free unreferenced scalar
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(W) Perl went to decrement the reference count of a scalar to see if it
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would go to 0, and discovered that it had already gone to 0 earlier,
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and should have been freed, and in fact, probably was freed. This
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could indicate that SvREFCNT_dec() was called too many times, or that
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SvREFCNT_inc() was called too few times, or that the SV was mortalized
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when it shouldn't have been, or that memory has been corrupted.
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=item Attempt to pack pointer to temporary value
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(W) You tried to pass a temporary value (like the result of a
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function, or a computed expression) to the "p" pack() template. This
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means the result contains a pointer to a location that could become
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invalid anytime, even before the end of the current statement. Use
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literals or global values as arguments to the "p" pack() template to
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avoid this warning.
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=item Attempt to use reference as lvalue in substr
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(W) You supplied a reference as the first argument to substr() used
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as an lvalue, which is pretty strange. Perhaps you forgot to
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dereference it first. See L<perlfunc/substr>.
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=item Bad arg length for %s, is %d, should be %d
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(F) You passed a buffer of the wrong size to one of msgctl(), semctl() or
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shmctl(). In C parlance, the correct sizes are, respectively,
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S<sizeof(struct msqid_ds *)>, S<sizeof(struct semid_ds *)>, and
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S<sizeof(struct shmid_ds *)>.
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=item Bad filehandle: %s
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(F) A symbol was passed to something wanting a filehandle, but the symbol
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has no filehandle associated with it. Perhaps you didn't do an open(), or
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did it in another package.
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=item Bad free() ignored
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(S) An internal routine called free() on something that had never been
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malloc()ed in the first place. Mandatory, but can be disabled by
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setting environment variable C<PERL_BADFREE> to 1.
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This message can be quite often seen with DB_File on systems with
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"hard" dynamic linking, like C<AIX> and C<OS/2>. It is a bug of
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C<Berkeley DB> which is left unnoticed if C<DB> uses I<forgiving>
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system malloc().
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=item Bad hash
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(P) One of the internal hash routines was passed a null HV pointer.
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=item Bad index while coercing array into hash
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(F) The index looked up in the hash found as the 0'th element of a
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pseudo-hash is not legal. Index values must be at 1 or greater.
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See L<perlref>.
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=item Bad name after %s::
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(F) You started to name a symbol by using a package prefix, and then didn't
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finish the symbol. In particular, you can't interpolate outside of quotes,
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so
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$var = 'myvar';
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$sym = mypack::$var;
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is not the same as
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$var = 'myvar';
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$sym = "mypack::$var";
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=item Bad symbol for array
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(P) An internal request asked to add an array entry to something that
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wasn't a symbol table entry.
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=item Bad symbol for filehandle
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(P) An internal request asked to add a filehandle entry to something that
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wasn't a symbol table entry.
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=item Bad symbol for hash
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(P) An internal request asked to add a hash entry to something that
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wasn't a symbol table entry.
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=item Badly placed ()'s
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(A) You've accidentally run your script through B<csh> instead
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of Perl. Check the #! line, or manually feed your script into
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Perl yourself.
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=item Bareword "%s" not allowed while "strict subs" in use
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(F) With "strict subs" in use, a bareword is only allowed as a
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subroutine identifier, in curly brackets or to the left of the "=>" symbol.
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Perhaps you need to predeclare a subroutine?
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=item Bareword "%s" refers to nonexistent package
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(W) You used a qualified bareword of the form C<Foo::>, but
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the compiler saw no other uses of that namespace before that point.
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Perhaps you need to predeclare a package?
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=item BEGIN failed--compilation aborted
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(F) An untrapped exception was raised while executing a BEGIN subroutine.
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Compilation stops immediately and the interpreter is exited.
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=item BEGIN not safe after errors--compilation aborted
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(F) Perl found a C<BEGIN {}> subroutine (or a C<use> directive, which
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implies a C<BEGIN {}>) after one or more compilation errors had
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already occurred. Since the intended environment for the C<BEGIN {}>
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could not be guaranteed (due to the errors), and since subsequent code
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likely depends on its correct operation, Perl just gave up.
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=item bind() on closed fd
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(W) You tried to do a bind on a closed socket. Did you forget to check
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the return value of your socket() call? See L<perlfunc/bind>.
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=item Bizarre copy of %s in %s
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(P) Perl detected an attempt to copy an internal value that is not copiable.
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=item Callback called exit
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(F) A subroutine invoked from an external package via perl_call_sv()
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exited by calling exit.
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=item Can't "goto" outside a block
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(F) A "goto" statement was executed to jump out of what might look
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like a block, except that it isn't a proper block. This usually
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occurs if you tried to jump out of a sort() block or subroutine, which
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is a no-no. See L<perlfunc/goto>.
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=item Can't "goto" into the middle of a foreach loop
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(F) A "goto" statement was executed to jump into the middle of a
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foreach loop. You can't get there from here. See L<perlfunc/goto>.
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=item Can't "last" outside a block
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(F) A "last" statement was executed to break out of the current block,
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except that there's this itty bitty problem called there isn't a
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current block. Note that an "if" or "else" block doesn't count as a
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"loopish" block, as doesn't a block given to sort(). You can usually double
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the curlies to get the same effect though, because the inner curlies
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will be considered a block that loops once. See L<perlfunc/last>.
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=item Can't "next" outside a block
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(F) A "next" statement was executed to reiterate the current block, but
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there isn't a current block. Note that an "if" or "else" block doesn't
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count as a "loopish" block, as doesn't a block given to sort(). You can
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usually double the curlies to get the same effect though, because the inner
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curlies will be considered a block that loops once. See L<perlfunc/next>.
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=item Can't "redo" outside a block
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(F) A "redo" statement was executed to restart the current block, but
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there isn't a current block. Note that an "if" or "else" block doesn't
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count as a "loopish" block, as doesn't a block given to sort(). You can
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usually double the curlies to get the same effect though, because the inner
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curlies will be considered a block that loops once. See L<perlfunc/redo>.
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=item Can't bless non-reference value
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(F) Only hard references may be blessed. This is how Perl "enforces"
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encapsulation of objects. See L<perlobj>.
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=item Can't break at that line
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(S) A warning intended to only be printed while running within the debugger, indicating
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the line number specified wasn't the location of a statement that could
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be stopped at.
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=item Can't call method "%s" in empty package "%s"
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(F) You called a method correctly, and it correctly indicated a package
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functioning as a class, but that package doesn't have ANYTHING defined
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in it, let alone methods. See L<perlobj>.
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=item Can't call method "%s" on unblessed reference
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(F) A method call must know in what package it's supposed to run. It
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ordinarily finds this out from the object reference you supply, but
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you didn't supply an object reference in this case. A reference isn't
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an object reference until it has been blessed. See L<perlobj>.
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=item Can't call method "%s" without a package or object reference
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(F) You used the syntax of a method call, but the slot filled by the
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object reference or package name contains an expression that returns
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a defined value which is neither an object reference nor a package name.
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Something like this will reproduce the error:
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$BADREF = 42;
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process $BADREF 1,2,3;
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$BADREF->process(1,2,3);
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=item Can't call method "%s" on an undefined value
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(F) You used the syntax of a method call, but the slot filled by the
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object reference or package name contains an undefined value.
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Something like this will reproduce the error:
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|
|
|
$BADREF = undef;
|
|
process $BADREF 1,2,3;
|
|
$BADREF->process(1,2,3);
|
|
|
|
=item Can't chdir to %s
|
|
|
|
(F) You called C<perl -x/foo/bar>, but C</foo/bar> is not a directory
|
|
that you can chdir to, possibly because it doesn't exist.
|
|
|
|
=item Can't check filesystem of script "%s" for nosuid
|
|
|
|
(P) For some reason you can't check the filesystem of the script for nosuid.
|
|
|
|
=item Can't coerce %s to integer in %s
|
|
|
|
(F) Certain types of SVs, in particular real symbol table entries
|
|
(typeglobs), can't be forced to stop being what they are. So you can't
|
|
say things like:
|
|
|
|
*foo += 1;
|
|
|
|
You CAN say
|
|
|
|
$foo = *foo;
|
|
$foo += 1;
|
|
|
|
but then $foo no longer contains a glob.
|
|
|
|
=item Can't coerce %s to number in %s
|
|
|
|
(F) Certain types of SVs, in particular real symbol table entries
|
|
(typeglobs), can't be forced to stop being what they are.
|
|
|
|
=item Can't coerce %s to string in %s
|
|
|
|
(F) Certain types of SVs, in particular real symbol table entries
|
|
(typeglobs), can't be forced to stop being what they are.
|
|
|
|
=item Can't coerce array into hash
|
|
|
|
(F) You used an array where a hash was expected, but the array has no
|
|
information on how to map from keys to array indices. You can do that
|
|
only with arrays that have a hash reference at index 0.
|
|
|
|
=item Can't create pipe mailbox
|
|
|
|
(P) An error peculiar to VMS. The process is suffering from exhausted quotas
|
|
or other plumbing problems.
|
|
|
|
=item Can't declare %s in my
|
|
|
|
(F) Only scalar, array, and hash variables may be declared as lexical variables.
|
|
They must have ordinary identifiers as names.
|
|
|
|
=item Can't do inplace edit on %s: %s
|
|
|
|
(S) The creation of the new file failed for the indicated reason.
|
|
|
|
=item Can't do inplace edit without backup
|
|
|
|
(F) You're on a system such as MS-DOS that gets confused if you try reading
|
|
from a deleted (but still opened) file. You have to say C<-i.bak>, or some
|
|
such.
|
|
|
|
=item Can't do inplace edit: %s E<gt> 14 characters
|
|
|
|
(S) There isn't enough room in the filename to make a backup name for the file.
|
|
|
|
=item Can't do inplace edit: %s is not a regular file
|
|
|
|
(S) You tried to use the B<-i> switch on a special file, such as a file in
|
|
/dev, or a FIFO. The file was ignored.
|
|
|
|
=item Can't do setegid!
|
|
|
|
(P) The setegid() call failed for some reason in the setuid emulator
|
|
of suidperl.
|
|
|
|
=item Can't do seteuid!
|
|
|
|
(P) The setuid emulator of suidperl failed for some reason.
|
|
|
|
=item Can't do setuid
|
|
|
|
(F) This typically means that ordinary perl tried to exec suidperl to
|
|
do setuid emulation, but couldn't exec it. It looks for a name of the
|
|
form sperl5.000 in the same directory that the perl executable resides
|
|
under the name perl5.000, typically /usr/local/bin on Unix machines.
|
|
If the file is there, check the execute permissions. If it isn't, ask
|
|
your sysadmin why he and/or she removed it.
|
|
|
|
=item Can't do waitpid with flags
|
|
|
|
(F) This machine doesn't have either waitpid() or wait4(), so only waitpid()
|
|
without flags is emulated.
|
|
|
|
=item Can't do {n,m} with n E<gt> m
|
|
|
|
(F) Minima must be less than or equal to maxima. If you really want
|
|
your regexp to match something 0 times, just put {0}. See L<perlre>.
|
|
|
|
=item Can't emulate -%s on #! line
|
|
|
|
(F) The #! line specifies a switch that doesn't make sense at this point.
|
|
For example, it'd be kind of silly to put a B<-x> on the #! line.
|
|
|
|
=item Can't exec "%s": %s
|
|
|
|
(W) An system(), exec(), or piped open call could not execute the named
|
|
program for the indicated reason. Typical reasons include: the permissions
|
|
were wrong on the file, the file wasn't found in C<$ENV{PATH}>, the
|
|
executable in question was compiled for another architecture, or the
|
|
#! line in a script points to an interpreter that can't be run for
|
|
similar reasons. (Or maybe your system doesn't support #! at all.)
|
|
|
|
=item Can't exec %s
|
|
|
|
(F) Perl was trying to execute the indicated program for you because that's
|
|
what the #! line said. If that's not what you wanted, you may need to
|
|
mention "perl" on the #! line somewhere.
|
|
|
|
=item Can't execute %s
|
|
|
|
(F) You used the B<-S> switch, but the copies of the script to execute found
|
|
in the PATH did not have correct permissions.
|
|
|
|
=item Can't find %s on PATH, '.' not in PATH
|
|
|
|
(F) You used the B<-S> switch, but the script to execute could not be found
|
|
in the PATH, or at least not with the correct permissions. The script
|
|
exists in the current directory, but PATH prohibits running it.
|
|
|
|
=item Can't find %s on PATH
|
|
|
|
(F) You used the B<-S> switch, but the script to execute could not be found
|
|
in the PATH.
|
|
|
|
=item Can't find label %s
|
|
|
|
(F) You said to goto a label that isn't mentioned anywhere that it's possible
|
|
for us to go to. See L<perlfunc/goto>.
|
|
|
|
=item Can't find string terminator %s anywhere before EOF
|
|
|
|
(F) Perl strings can stretch over multiple lines. This message means that
|
|
the closing delimiter was omitted. Because bracketed quotes count nesting
|
|
levels, the following is missing its final parenthesis:
|
|
|
|
print q(The character '(' starts a side comment.);
|
|
|
|
If you're getting this error from a here-document, you may have
|
|
included unseen whitespace before or after your closing tag. A good
|
|
programmer's editor will have a way to help you find these characters.
|
|
|
|
=item Can't fork
|
|
|
|
(F) A fatal error occurred while trying to fork while opening a pipeline.
|
|
|
|
=item Can't get filespec - stale stat buffer?
|
|
|
|
(S) A warning peculiar to VMS. This arises because of the difference between
|
|
access checks under VMS and under the Unix model Perl assumes. Under VMS,
|
|
access checks are done by filename, rather than by bits in the stat buffer, so
|
|
that ACLs and other protections can be taken into account. Unfortunately, Perl
|
|
assumes that the stat buffer contains all the necessary information, and passes
|
|
it, instead of the filespec, to the access checking routine. It will try to
|
|
retrieve the filespec using the device name and FID present in the stat buffer,
|
|
but this works only if you haven't made a subsequent call to the CRTL stat()
|
|
routine, because the device name is overwritten with each call. If this warning
|
|
appears, the name lookup failed, and the access checking routine gave up and
|
|
returned FALSE, just to be conservative. (Note: The access checking routine
|
|
knows about the Perl C<stat> operator and file tests, so you shouldn't ever
|
|
see this warning in response to a Perl command; it arises only if some internal
|
|
code takes stat buffers lightly.)
|
|
|
|
=item Can't get pipe mailbox device name
|
|
|
|
(P) An error peculiar to VMS. After creating a mailbox to act as a pipe, Perl
|
|
can't retrieve its name for later use.
|
|
|
|
=item Can't get SYSGEN parameter value for MAXBUF
|
|
|
|
(P) An error peculiar to VMS. Perl asked $GETSYI how big you want your
|
|
mailbox buffers to be, and didn't get an answer.
|
|
|
|
=item Can't goto subroutine outside a subroutine
|
|
|
|
(F) The deeply magical "goto subroutine" call can only replace one subroutine
|
|
call for another. It can't manufacture one out of whole cloth. In general
|
|
you should be calling it out of only an AUTOLOAD routine anyway. See
|
|
L<perlfunc/goto>.
|
|
|
|
=item Can't goto subroutine from an eval-string
|
|
|
|
(F) The "goto subroutine" call can't be used to jump out of an eval "string".
|
|
(You can use it to jump out of an eval {BLOCK}, but you probably don't want to.)
|
|
|
|
=item Can't localize through a reference
|
|
|
|
(F) You said something like C<local $$ref>, which Perl can't currently
|
|
handle, because when it goes to restore the old value of whatever $ref
|
|
pointed to after the scope of the local() is finished, it can't be
|
|
sure that $ref will still be a reference.
|
|
|
|
=item Can't localize lexical variable %s
|
|
|
|
(F) You used local on a variable name that was previously declared as a
|
|
lexical variable using "my". This is not allowed. If you want to
|
|
localize a package variable of the same name, qualify it with the
|
|
package name.
|
|
|
|
=item Can't localize pseudo-hash element
|
|
|
|
(F) You said something like C<local $ar-E<gt>{'key'}>, where $ar is
|
|
a reference to a pseudo-hash. That hasn't been implemented yet, but
|
|
you can get a similar effect by localizing the corresponding array
|
|
element directly -- C<local $ar-E<gt>[$ar-E<gt>[0]{'key'}]>.
|
|
|
|
=item Can't locate auto/%s.al in @INC
|
|
|
|
(F) A function (or method) was called in a package which allows autoload,
|
|
but there is no function to autoload. Most probable causes are a misprint
|
|
in a function/method name or a failure to C<AutoSplit> the file, say, by
|
|
doing C<make install>.
|
|
|
|
=item Can't locate %s in @INC
|
|
|
|
(F) You said to do (or require, or use) a file that couldn't be found
|
|
in any of the libraries mentioned in @INC. Perhaps you need to set the
|
|
PERL5LIB or PERL5OPT environment variable to say where the extra library
|
|
is, or maybe the script needs to add the library name to @INC. Or maybe
|
|
you just misspelled the name of the file. See L<perlfunc/require>.
|
|
|
|
=item Can't locate object method "%s" via package "%s"
|
|
|
|
(F) You called a method correctly, and it correctly indicated a package
|
|
functioning as a class, but that package doesn't define that particular
|
|
method, nor does any of its base classes. See L<perlobj>.
|
|
|
|
=item Can't locate package %s for @%s::ISA
|
|
|
|
(W) The @ISA array contained the name of another package that doesn't seem
|
|
to exist.
|
|
|
|
=item Can't make list assignment to \%ENV on this system
|
|
|
|
(F) List assignment to %ENV is not supported on some systems, notably VMS.
|
|
|
|
=item Can't modify %s in %s
|
|
|
|
(F) You aren't allowed to assign to the item indicated, or otherwise try to
|
|
change it, such as with an auto-increment.
|
|
|
|
=item Can't modify nonexistent substring
|
|
|
|
(P) The internal routine that does assignment to a substr() was handed
|
|
a NULL.
|
|
|
|
=item Can't msgrcv to read-only var
|
|
|
|
(F) The target of a msgrcv must be modifiable to be used as a receive
|
|
buffer.
|
|
|
|
=item Can't open %s: %s
|
|
|
|
(S) The implicit opening of a file through use of the C<E<lt>E<gt>>
|
|
filehandle, either implicitly under the C<-n> or C<-p> command-line
|
|
switches, or explicitly, failed for the indicated reason. Usually this
|
|
is because you don't have read permission for a file which you named
|
|
on the command line.
|
|
|
|
=item Can't open bidirectional pipe
|
|
|
|
(W) You tried to say C<open(CMD, "|cmd|")>, which is not supported. You can
|
|
try any of several modules in the Perl library to do this, such as
|
|
IPC::Open2. Alternately, direct the pipe's output to a file using "E<gt>",
|
|
and then read it in under a different file handle.
|
|
|
|
=item Can't open error file %s as stderr
|
|
|
|
(F) An error peculiar to VMS. Perl does its own command line redirection, and
|
|
couldn't open the file specified after '2E<gt>' or '2E<gt>E<gt>' on the
|
|
command line for writing.
|
|
|
|
=item Can't open input file %s as stdin
|
|
|
|
(F) An error peculiar to VMS. Perl does its own command line redirection, and
|
|
couldn't open the file specified after 'E<lt>' on the command line for reading.
|
|
|
|
=item Can't open output file %s as stdout
|
|
|
|
(F) An error peculiar to VMS. Perl does its own command line redirection, and
|
|
couldn't open the file specified after 'E<gt>' or 'E<gt>E<gt>' on the command
|
|
line for writing.
|
|
|
|
=item Can't open output pipe (name: %s)
|
|
|
|
(P) An error peculiar to VMS. Perl does its own command line redirection, and
|
|
couldn't open the pipe into which to send data destined for stdout.
|
|
|
|
=item Can't open perl script "%s": %s
|
|
|
|
(F) The script you specified can't be opened for the indicated reason.
|
|
|
|
=item Can't redefine active sort subroutine %s
|
|
|
|
(F) Perl optimizes the internal handling of sort subroutines and keeps
|
|
pointers into them. You tried to redefine one such sort subroutine when it
|
|
was currently active, which is not allowed. If you really want to do
|
|
this, you should write C<sort { &func } @x> instead of C<sort func @x>.
|
|
|
|
=item Can't rename %s to %s: %s, skipping file
|
|
|
|
(S) The rename done by the B<-i> switch failed for some reason, probably because
|
|
you don't have write permission to the directory.
|
|
|
|
=item Can't reopen input pipe (name: %s) in binary mode
|
|
|
|
(P) An error peculiar to VMS. Perl thought stdin was a pipe, and tried to
|
|
reopen it to accept binary data. Alas, it failed.
|
|
|
|
=item Can't reswap uid and euid
|
|
|
|
(P) The setreuid() call failed for some reason in the setuid emulator
|
|
of suidperl.
|
|
|
|
=item Can't return outside a subroutine
|
|
|
|
(F) The return statement was executed in mainline code, that is, where
|
|
there was no subroutine call to return out of. See L<perlsub>.
|
|
|
|
=item Can't stat script "%s"
|
|
|
|
(P) For some reason you can't fstat() the script even though you have
|
|
it open already. Bizarre.
|
|
|
|
=item Can't swap uid and euid
|
|
|
|
(P) The setreuid() call failed for some reason in the setuid emulator
|
|
of suidperl.
|
|
|
|
=item Can't take log of %g
|
|
|
|
(F) For ordinary real numbers, you can't take the logarithm of a
|
|
negative number or zero. There's a Math::Complex package that comes
|
|
standard with Perl, though, if you really want to do that for
|
|
the negative numbers.
|
|
|
|
=item Can't take sqrt of %g
|
|
|
|
(F) For ordinary real numbers, you can't take the square root of a
|
|
negative number. There's a Math::Complex package that comes standard
|
|
with Perl, though, if you really want to do that.
|
|
|
|
=item Can't undef active subroutine
|
|
|
|
(F) You can't undefine a routine that's currently running. You can,
|
|
however, redefine it while it's running, and you can even undef the
|
|
redefined subroutine while the old routine is running. Go figure.
|
|
|
|
=item Can't unshift
|
|
|
|
(F) You tried to unshift an "unreal" array that can't be unshifted, such
|
|
as the main Perl stack.
|
|
|
|
=item Can't upgrade that kind of scalar
|
|
|
|
(P) The internal sv_upgrade routine adds "members" to an SV, making
|
|
it into a more specialized kind of SV. The top several SV types are
|
|
so specialized, however, that they cannot be interconverted. This
|
|
message indicates that such a conversion was attempted.
|
|
|
|
=item Can't upgrade to undef
|
|
|
|
(P) The undefined SV is the bottom of the totem pole, in the scheme
|
|
of upgradability. Upgrading to undef indicates an error in the
|
|
code calling sv_upgrade.
|
|
|
|
=item Can't use %%! because Errno.pm is not available
|
|
|
|
(F) The first time the %! hash is used, perl automatically loads the
|
|
Errno.pm module. The Errno module is expected to tie the %! hash to
|
|
provide symbolic names for C<$!> errno values.
|
|
|
|
=item Can't use "my %s" in sort comparison
|
|
|
|
(F) The global variables $a and $b are reserved for sort comparisons.
|
|
You mentioned $a or $b in the same line as the E<lt>=E<gt> or cmp operator,
|
|
and the variable had earlier been declared as a lexical variable.
|
|
Either qualify the sort variable with the package name, or rename the
|
|
lexical variable.
|
|
|
|
=item Can't use %s for loop variable
|
|
|
|
(F) Only a simple scalar variable may be used as a loop variable on a foreach.
|
|
|
|
=item Can't use %s ref as %s ref
|
|
|
|
(F) You've mixed up your reference types. You have to dereference a
|
|
reference of the type needed. You can use the ref() function to
|
|
test the type of the reference, if need be.
|
|
|
|
=item Can't use \1 to mean $1 in expression
|
|
|
|
(W) In an ordinary expression, backslash is a unary operator that creates
|
|
a reference to its argument. The use of backslash to indicate a backreference
|
|
to a matched substring is valid only as part of a regular expression pattern.
|
|
Trying to do this in ordinary Perl code produces a value that prints
|
|
out looking like SCALAR(0xdecaf). Use the $1 form instead.
|
|
|
|
=item Can't use bareword ("%s") as %s ref while \"strict refs\" in use
|
|
|
|
(F) Only hard references are allowed by "strict refs". Symbolic references
|
|
are disallowed. See L<perlref>.
|
|
|
|
=item Can't use string ("%s") as %s ref while "strict refs" in use
|
|
|
|
(F) Only hard references are allowed by "strict refs". Symbolic references
|
|
are disallowed. See L<perlref>.
|
|
|
|
=item Can't use an undefined value as %s reference
|
|
|
|
(F) A value used as either a hard reference or a symbolic reference must
|
|
be a defined value. This helps to delurk some insidious errors.
|
|
|
|
=item Can't use global %s in "my"
|
|
|
|
(F) You tried to declare a magical variable as a lexical variable. This is
|
|
not allowed, because the magic can be tied to only one location (namely
|
|
the global variable) and it would be incredibly confusing to have
|
|
variables in your program that looked like magical variables but
|
|
weren't.
|
|
|
|
=item Can't use subscript on %s
|
|
|
|
(F) The compiler tried to interpret a bracketed expression as a
|
|
subscript. But to the left of the brackets was an expression that
|
|
didn't look like an array reference, or anything else subscriptable.
|
|
|
|
=item Can't x= to read-only value
|
|
|
|
(F) You tried to repeat a constant value (often the undefined value) with
|
|
an assignment operator, which implies modifying the value itself.
|
|
Perhaps you need to copy the value to a temporary, and repeat that.
|
|
|
|
=item Cannot find an opnumber for "%s"
|
|
|
|
(F) A string of a form C<CORE::word> was given to prototype(), but
|
|
there is no builtin with the name C<word>.
|
|
|
|
=item Cannot resolve method `%s' overloading `%s' in package `%s'
|
|
|
|
(F|P) Error resolving overloading specified by a method name (as
|
|
opposed to a subroutine reference): no such method callable via the
|
|
package. If method name is C<???>, this is an internal error.
|
|
|
|
=item Character class syntax [. .] is reserved for future extensions
|
|
|
|
(W) Within regular expression character classes ([]) the syntax beginning
|
|
with "[." and ending with ".]" is reserved for future extensions.
|
|
If you need to represent those character sequences inside a regular
|
|
expression character class, just quote the square brackets with the
|
|
backslash: "\[." and ".\]".
|
|
|
|
=item Character class syntax [: :] is reserved for future extensions
|
|
|
|
(W) Within regular expression character classes ([]) the syntax beginning
|
|
with "[:" and ending with ":]" is reserved for future extensions.
|
|
If you need to represent those character sequences inside a regular
|
|
expression character class, just quote the square brackets with the
|
|
backslash: "\[:" and ":\]".
|
|
|
|
=item Character class syntax [= =] is reserved for future extensions
|
|
|
|
(W) Within regular expression character classes ([]) the syntax
|
|
beginning with "[=" and ending with "=]" is reserved for future extensions.
|
|
If you need to represent those character sequences inside a regular
|
|
expression character class, just quote the square brackets with the
|
|
backslash: "\[=" and "=\]".
|
|
|
|
=item chmod: mode argument is missing initial 0
|
|
|
|
(W) A novice will sometimes say
|
|
|
|
chmod 777, $filename
|
|
|
|
not realizing that 777 will be interpreted as a decimal number, equivalent
|
|
to 01411. Octal constants are introduced with a leading 0 in Perl, as in C.
|
|
|
|
=item Close on unopened file E<lt>%sE<gt>
|
|
|
|
(W) You tried to close a filehandle that was never opened.
|
|
|
|
=item Compilation failed in require
|
|
|
|
(F) Perl could not compile a file specified in a C<require> statement.
|
|
Perl uses this generic message when none of the errors that it encountered
|
|
were severe enough to halt compilation immediately.
|
|
|
|
=item Complex regular subexpression recursion limit (%d) exceeded
|
|
|
|
(W) The regular expression engine uses recursion in complex situations
|
|
where back-tracking is required. Recursion depth is limited to 32766,
|
|
or perhaps less in architectures where the stack cannot grow
|
|
arbitrarily. ("Simple" and "medium" situations are handled without
|
|
recursion and are not subject to a limit.) Try shortening the string
|
|
under examination; looping in Perl code (e.g. with C<while>) rather
|
|
than in the regular expression engine; or rewriting the regular
|
|
expression so that it is simpler or backtracks less. (See L<perlbook>
|
|
for information on I<Mastering Regular Expressions>.)
|
|
|
|
=item connect() on closed fd
|
|
|
|
(W) You tried to do a connect on a closed socket. Did you forget to check
|
|
the return value of your socket() call? See L<perlfunc/connect>.
|
|
|
|
=item Constant is not %s reference
|
|
|
|
(F) A constant value (perhaps declared using the C<use constant> pragma)
|
|
is being dereferenced, but it amounts to the wrong type of reference. The
|
|
message indicates the type of reference that was expected. This usually
|
|
indicates a syntax error in dereferencing the constant value.
|
|
See L<perlsub/"Constant Functions"> and L<constant>.
|
|
|
|
=item Constant subroutine %s redefined
|
|
|
|
(S) You redefined a subroutine which had previously been eligible for
|
|
inlining. See L<perlsub/"Constant Functions"> for commentary and
|
|
workarounds.
|
|
|
|
=item Constant subroutine %s undefined
|
|
|
|
(S) You undefined a subroutine which had previously been eligible for
|
|
inlining. See L<perlsub/"Constant Functions"> for commentary and
|
|
workarounds.
|
|
|
|
=item Copy method did not return a reference
|
|
|
|
(F) The method which overloads "=" is buggy. See L<overload/Copy Constructor>.
|
|
|
|
=item Corrupt malloc ptr 0x%lx at 0x%lx
|
|
|
|
(P) The malloc package that comes with Perl had an internal failure.
|
|
|
|
=item corrupted regexp pointers
|
|
|
|
(P) The regular expression engine got confused by what the regular
|
|
expression compiler gave it.
|
|
|
|
=item corrupted regexp program
|
|
|
|
(P) The regular expression engine got passed a regexp program without
|
|
a valid magic number.
|
|
|
|
=item Deep recursion on subroutine "%s"
|
|
|
|
(W) This subroutine has called itself (directly or indirectly) 100
|
|
times more than it has returned. This probably indicates an infinite
|
|
recursion, unless you're writing strange benchmark programs, in which
|
|
case it indicates something else.
|
|
|
|
=item Delimiter for here document is too long
|
|
|
|
(F) In a here document construct like C<E<lt>E<lt>FOO>, the label
|
|
C<FOO> is too long for Perl to handle. You have to be seriously
|
|
twisted to write code that triggers this error.
|
|
|
|
=item Did you mean &%s instead?
|
|
|
|
(W) You probably referred to an imported subroutine &FOO as $FOO or some such.
|
|
|
|
=item Did you mean $ or @ instead of %?
|
|
|
|
(W) You probably said %hash{$key} when you meant $hash{$key} or @hash{@keys}.
|
|
On the other hand, maybe you just meant %hash and got carried away.
|
|
|
|
=item Died
|
|
|
|
(F) You passed die() an empty string (the equivalent of C<die "">) or
|
|
you called it with no args and both C<$@> and C<$_> were empty.
|
|
|
|
=item Do you need to predeclare %s?
|
|
|
|
(S) This is an educated guess made in conjunction with the message "%s
|
|
found where operator expected". It often means a subroutine or module
|
|
name is being referenced that hasn't been declared yet. This may be
|
|
because of ordering problems in your file, or because of a missing
|
|
"sub", "package", "require", or "use" statement. If you're
|
|
referencing something that isn't defined yet, you don't actually have
|
|
to define the subroutine or package before the current location. You
|
|
can use an empty "sub foo;" or "package FOO;" to enter a "forward"
|
|
declaration.
|
|
|
|
=item Don't know how to handle magic of type '%s'
|
|
|
|
(P) The internal handling of magical variables has been cursed.
|
|
|
|
=item do_study: out of memory
|
|
|
|
(P) This should have been caught by safemalloc() instead.
|
|
|
|
=item Duplicate free() ignored
|
|
|
|
(S) An internal routine called free() on something that had already
|
|
been freed.
|
|
|
|
=item elseif should be elsif
|
|
|
|
(S) There is no keyword "elseif" in Perl because Larry thinks it's
|
|
ugly. Your code will be interpreted as an attempt to call a method
|
|
named "elseif" for the class returned by the following block. This is
|
|
unlikely to be what you want.
|
|
|
|
=item END failed--cleanup aborted
|
|
|
|
(F) An untrapped exception was raised while executing an END subroutine.
|
|
The interpreter is immediately exited.
|
|
|
|
=item Error converting file specification %s
|
|
|
|
(F) An error peculiar to VMS. Because Perl may have to deal with file
|
|
specifications in either VMS or Unix syntax, it converts them to a
|
|
single form when it must operate on them directly. Either you've
|
|
passed an invalid file specification to Perl, or you've found a
|
|
case the conversion routines don't handle. Drat.
|
|
|
|
=item %s: Eval-group in insecure regular expression
|
|
|
|
(F) Perl detected tainted data when trying to compile a regular expression
|
|
that contains the C<(?{ ... })> zero-width assertion, which is unsafe.
|
|
See L<perlre/(?{ code })>, and L<perlsec>.
|
|
|
|
=item %s: Eval-group not allowed, use re 'eval'
|
|
|
|
(F) A regular expression contained the C<(?{ ... })> zero-width assertion,
|
|
but that construct is only allowed when the C<use re 'eval'> pragma is
|
|
in effect. See L<perlre/(?{ code })>.
|
|
|
|
=item %s: Eval-group not allowed at run time
|
|
|
|
(F) Perl tried to compile a regular expression containing the C<(?{ ... })>
|
|
zero-width assertion at run time, as it would when the pattern contains
|
|
interpolated values. Since that is a security risk, it is not allowed.
|
|
If you insist, you may still do this by explicitly building the pattern
|
|
from an interpolated string at run time and using that in an eval().
|
|
See L<perlre/(?{ code })>.
|
|
|
|
=item Excessively long <> operator
|
|
|
|
(F) The contents of a <> operator may not exceed the maximum size of a
|
|
Perl identifier. If you're just trying to glob a long list of
|
|
filenames, try using the glob() operator, or put the filenames into a
|
|
variable and glob that.
|
|
|
|
=item Execution of %s aborted due to compilation errors
|
|
|
|
(F) The final summary message when a Perl compilation fails.
|
|
|
|
=item Exiting eval via %s
|
|
|
|
(W) You are exiting an eval by unconventional means, such as
|
|
a goto, or a loop control statement.
|
|
|
|
=item Exiting pseudo-block via %s
|
|
|
|
(W) You are exiting a rather special block construct (like a sort block or
|
|
subroutine) by unconventional means, such as a goto, or a loop control
|
|
statement. See L<perlfunc/sort>.
|
|
|
|
=item Exiting subroutine via %s
|
|
|
|
(W) You are exiting a subroutine by unconventional means, such as
|
|
a goto, or a loop control statement.
|
|
|
|
=item Exiting substitution via %s
|
|
|
|
(W) You are exiting a substitution by unconventional means, such as
|
|
a return, a goto, or a loop control statement.
|
|
|
|
=item Explicit blessing to '' (assuming package main)
|
|
|
|
(W) You are blessing a reference to a zero length string. This has
|
|
the effect of blessing the reference into the package main. This is
|
|
usually not what you want. Consider providing a default target
|
|
package, e.g. bless($ref, $p || 'MyPackage');
|
|
|
|
=item Fatal VMS error at %s, line %d
|
|
|
|
(P) An error peculiar to VMS. Something untoward happened in a VMS system
|
|
service or RTL routine; Perl's exit status should provide more details. The
|
|
filename in "at %s" and the line number in "line %d" tell you which section of
|
|
the Perl source code is distressed.
|
|
|
|
=item fcntl is not implemented
|
|
|
|
(F) Your machine apparently doesn't implement fcntl(). What is this, a
|
|
PDP-11 or something?
|
|
|
|
=item Filehandle %s never opened
|
|
|
|
(W) An I/O operation was attempted on a filehandle that was never initialized.
|
|
You need to do an open() or a socket() call, or call a constructor from
|
|
the FileHandle package.
|
|
|
|
=item Filehandle %s opened for only input
|
|
|
|
(W) You tried to write on a read-only filehandle. If you
|
|
intended it to be a read-write filehandle, you needed to open it with
|
|
"+E<lt>" or "+E<gt>" or "+E<gt>E<gt>" instead of with "E<lt>" or nothing. If
|
|
you intended only to write the file, use "E<gt>" or "E<gt>E<gt>". See
|
|
L<perlfunc/open>.
|
|
|
|
=item Filehandle opened for only input
|
|
|
|
(W) You tried to write on a read-only filehandle. If you
|
|
intended it to be a read-write filehandle, you needed to open it with
|
|
"+E<lt>" or "+E<gt>" or "+E<gt>E<gt>" instead of with "E<lt>" or nothing. If
|
|
you intended only to write the file, use "E<gt>" or "E<gt>E<gt>". See
|
|
L<perlfunc/open>.
|
|
|
|
=item Final $ should be \$ or $name
|
|
|
|
(F) You must now decide whether the final $ in a string was meant to be
|
|
a literal dollar sign, or was meant to introduce a variable name
|
|
that happens to be missing. So you have to put either the backslash or
|
|
the name.
|
|
|
|
=item Final @ should be \@ or @name
|
|
|
|
(F) You must now decide whether the final @ in a string was meant to be
|
|
a literal "at" sign, or was meant to introduce a variable name
|
|
that happens to be missing. So you have to put either the backslash or
|
|
the name.
|
|
|
|
=item Format %s redefined
|
|
|
|
(W) You redefined a format. To suppress this warning, say
|
|
|
|
{
|
|
local $^W = 0;
|
|
eval "format NAME =...";
|
|
}
|
|
|
|
=item Format not terminated
|
|
|
|
(F) A format must be terminated by a line with a solitary dot. Perl got
|
|
to the end of your file without finding such a line.
|
|
|
|
=item Found = in conditional, should be ==
|
|
|
|
(W) You said
|
|
|
|
if ($foo = 123)
|
|
|
|
when you meant
|
|
|
|
if ($foo == 123)
|
|
|
|
(or something like that).
|
|
|
|
=item gdbm store returned %d, errno %d, key "%s"
|
|
|
|
(S) A warning from the GDBM_File extension that a store failed.
|
|
|
|
=item gethostent not implemented
|
|
|
|
(F) Your C library apparently doesn't implement gethostent(), probably
|
|
because if it did, it'd feel morally obligated to return every hostname
|
|
on the Internet.
|
|
|
|
=item get{sock,peer}name() on closed fd
|
|
|
|
(W) You tried to get a socket or peer socket name on a closed socket.
|
|
Did you forget to check the return value of your socket() call?
|
|
|
|
=item getpwnam returned invalid UIC %#o for user "%s"
|
|
|
|
(S) A warning peculiar to VMS. The call to C<sys$getuai> underlying the
|
|
C<getpwnam> operator returned an invalid UIC.
|
|
|
|
=item Glob not terminated
|
|
|
|
(F) The lexer saw a left angle bracket in a place where it was expecting
|
|
a term, so it's looking for the corresponding right angle bracket, and not
|
|
finding it. Chances are you left some needed parentheses out earlier in
|
|
the line, and you really meant a "less than".
|
|
|
|
=item Global symbol "%s" requires explicit package name
|
|
|
|
(F) You've said "use strict vars", which indicates that all variables
|
|
must either be lexically scoped (using "my"), or explicitly qualified to
|
|
say which package the global variable is in (using "::").
|
|
|
|
=item goto must have label
|
|
|
|
(F) Unlike with "next" or "last", you're not allowed to goto an
|
|
unspecified destination. See L<perlfunc/goto>.
|
|
|
|
=item Had to create %s unexpectedly
|
|
|
|
(S) A routine asked for a symbol from a symbol table that ought to have
|
|
existed already, but for some reason it didn't, and had to be created on
|
|
an emergency basis to prevent a core dump.
|
|
|
|
=item Hash %%s missing the % in argument %d of %s()
|
|
|
|
(D) Really old Perl let you omit the % on hash names in some spots. This
|
|
is now heavily deprecated.
|
|
|
|
=item Identifier too long
|
|
|
|
(F) Perl limits identifiers (names for variables, functions, etc.) to
|
|
about 250 characters for simple names, and somewhat more for compound
|
|
names (like C<$A::B>). You've exceeded Perl's limits. Future
|
|
versions of Perl are likely to eliminate these arbitrary limitations.
|
|
|
|
=item Ill-formed logical name |%s| in prime_env_iter
|
|
|
|
(W) A warning peculiar to VMS. A logical name was encountered when preparing
|
|
to iterate over %ENV which violates the syntactic rules governing logical
|
|
names. Because it cannot be translated normally, it is skipped, and will not
|
|
appear in %ENV. This may be a benign occurrence, as some software packages
|
|
might directly modify logical name tables and introduce nonstandard names,
|
|
or it may indicate that a logical name table has been corrupted.
|
|
|
|
=item Illegal character %s (carriage return)
|
|
|
|
(F) A carriage return character was found in the input. This is an
|
|
error, and not a warning, because carriage return characters can break
|
|
multi-line strings, including here documents (e.g., C<print E<lt>E<lt>EOF;>).
|
|
|
|
Under Unix, this error is usually caused by executing Perl code --
|
|
either the main program, a module, or an eval'd string -- that was
|
|
transferred over a network connection from a non-Unix system without
|
|
properly converting the text file format.
|
|
|
|
Under systems that use something other than '\n' to delimit lines of
|
|
text, this error can also be caused by reading Perl code from a file
|
|
handle that is in binary mode (as set by the C<binmode> operator).
|
|
|
|
In either case, the Perl code in question will probably need to be
|
|
converted with something like C<s/\x0D\x0A?/\n/g> before it can be
|
|
executed.
|
|
|
|
=item Illegal division by zero
|
|
|
|
(F) You tried to divide a number by 0. Either something was wrong in your
|
|
logic, or you need to put a conditional in to guard against meaningless input.
|
|
|
|
=item Illegal modulus zero
|
|
|
|
(F) You tried to divide a number by 0 to get the remainder. Most numbers
|
|
don't take to this kindly.
|
|
|
|
=item Illegal octal digit
|
|
|
|
(F) You used an 8 or 9 in a octal number.
|
|
|
|
=item Illegal octal digit ignored
|
|
|
|
(W) You may have tried to use an 8 or 9 in a octal number. Interpretation
|
|
of the octal number stopped before the 8 or 9.
|
|
|
|
=item Illegal hex digit ignored
|
|
|
|
(W) You may have tried to use a character other than 0 - 9 or A - F in a
|
|
hexadecimal number. Interpretation of the hexadecimal number stopped
|
|
before the illegal character.
|
|
|
|
=item Illegal switch in PERL5OPT: %s
|
|
|
|
(X) The PERL5OPT environment variable may only be used to set the
|
|
following switches: B<-[DIMUdmw]>.
|
|
|
|
=item In string, @%s now must be written as \@%s
|
|
|
|
(F) It used to be that Perl would try to guess whether you wanted an
|
|
array interpolated or a literal @. It did this when the string was first
|
|
used at runtime. Now strings are parsed at compile time, and ambiguous
|
|
instances of @ must be disambiguated, either by prepending a backslash to
|
|
indicate a literal, or by declaring (or using) the array within the
|
|
program before the string (lexically). (Someday it will simply assume
|
|
that an unbackslashed @ interpolates an array.)
|
|
|
|
=item Insecure dependency in %s
|
|
|
|
(F) You tried to do something that the tainting mechanism didn't like.
|
|
The tainting mechanism is turned on when you're running setuid or setgid,
|
|
or when you specify B<-T> to turn it on explicitly. The tainting mechanism
|
|
labels all data that's derived directly or indirectly from the user,
|
|
who is considered to be unworthy of your trust. If any such data is
|
|
used in a "dangerous" operation, you get this error. See L<perlsec>
|
|
for more information.
|
|
|
|
=item Insecure directory in %s
|
|
|
|
(F) You can't use system(), exec(), or a piped open in a setuid or setgid
|
|
script if C<$ENV{PATH}> contains a directory that is writable by the world.
|
|
See L<perlsec>.
|
|
|
|
=item Insecure $ENV{%s} while running %s
|
|
|
|
(F) You can't use system(), exec(), or a piped open in a setuid or
|
|
setgid script if any of C<$ENV{PATH}>, C<$ENV{IFS}>, C<$ENV{CDPATH}>,
|
|
C<$ENV{ENV}> or C<$ENV{BASH_ENV}> are derived from data supplied (or
|
|
potentially supplied) by the user. The script must set the path to a
|
|
known value, using trustworthy data. See L<perlsec>.
|
|
|
|
=item Integer overflow in hex number
|
|
|
|
(S) The literal hex number you have specified is too big for your
|
|
architecture. On a 32-bit architecture the largest hex literal is
|
|
0xFFFFFFFF.
|
|
|
|
=item Integer overflow in octal number
|
|
|
|
(S) The literal octal number you have specified is too big for your
|
|
architecture. On a 32-bit architecture the largest octal literal is
|
|
037777777777.
|
|
|
|
=item Internal inconsistency in tracking vforks
|
|
|
|
(S) A warning peculiar to VMS. Perl keeps track of the number
|
|
of times you've called C<fork> and C<exec>, to determine
|
|
whether the current call to C<exec> should affect the current
|
|
script or a subprocess (see L<perlvms/"exec LIST">). Somehow, this count
|
|
has become scrambled, so Perl is making a guess and treating
|
|
this C<exec> as a request to terminate the Perl script
|
|
and execute the specified command.
|
|
|
|
=item internal disaster in regexp
|
|
|
|
(P) Something went badly wrong in the regular expression parser.
|
|
|
|
=item glob failed (%s)
|
|
|
|
(W) Something went wrong with the external program(s) used for C<glob>
|
|
and C<E<lt>*.cE<gt>>. Usually, this means that you supplied a C<glob>
|
|
pattern that caused the external program to fail and exit with a nonzero
|
|
status. If the message indicates that the abnormal exit resulted in a
|
|
coredump, this may also mean that your csh (C shell) is broken. If so,
|
|
you should change all of the csh-related variables in config.sh: If you
|
|
have tcsh, make the variables refer to it as if it were csh (e.g.
|
|
C<full_csh='/usr/bin/tcsh'>); otherwise, make them all empty (except that
|
|
C<d_csh> should be C<'undef'>) so that Perl will think csh is missing.
|
|
In either case, after editing config.sh, run C<./Configure -S> and
|
|
rebuild Perl.
|
|
|
|
=item internal urp in regexp at /%s/
|
|
|
|
(P) Something went badly awry in the regular expression parser.
|
|
|
|
=item invalid [] range in regexp
|
|
|
|
(F) The range specified in a character class had a minimum character
|
|
greater than the maximum character. See L<perlre>.
|
|
|
|
=item Invalid conversion in %s: "%s"
|
|
|
|
(W) Perl does not understand the given format conversion.
|
|
See L<perlfunc/sprintf>.
|
|
|
|
=item Invalid type in pack: '%s'
|
|
|
|
(F) The given character is not a valid pack type. See L<perlfunc/pack>.
|
|
(W) The given character is not a valid pack type but used to be silently
|
|
ignored.
|
|
|
|
=item Invalid type in unpack: '%s'
|
|
|
|
(F) The given character is not a valid unpack type. See L<perlfunc/unpack>.
|
|
(W) The given character is not a valid unpack type but used to be silently
|
|
ignored.
|
|
|
|
=item ioctl is not implemented
|
|
|
|
(F) Your machine apparently doesn't implement ioctl(), which is pretty
|
|
strange for a machine that supports C.
|
|
|
|
=item junk on end of regexp
|
|
|
|
(P) The regular expression parser is confused.
|
|
|
|
=item Label not found for "last %s"
|
|
|
|
(F) You named a loop to break out of, but you're not currently in a
|
|
loop of that name, not even if you count where you were called from.
|
|
See L<perlfunc/last>.
|
|
|
|
=item Label not found for "next %s"
|
|
|
|
(F) You named a loop to continue, but you're not currently in a loop of
|
|
that name, not even if you count where you were called from. See
|
|
L<perlfunc/last>.
|
|
|
|
=item Label not found for "redo %s"
|
|
|
|
(F) You named a loop to restart, but you're not currently in a loop of
|
|
that name, not even if you count where you were called from. See
|
|
L<perlfunc/last>.
|
|
|
|
=item listen() on closed fd
|
|
|
|
(W) You tried to do a listen on a closed socket. Did you forget to check
|
|
the return value of your socket() call? See L<perlfunc/listen>.
|
|
|
|
=item Method for operation %s not found in package %s during blessing
|
|
|
|
(F) An attempt was made to specify an entry in an overloading table that
|
|
doesn't resolve to a valid subroutine. See L<overload>.
|
|
|
|
=item Might be a runaway multi-line %s string starting on line %d
|
|
|
|
(S) An advisory indicating that the previous error may have been caused
|
|
by a missing delimiter on a string or pattern, because it eventually
|
|
ended earlier on the current line.
|
|
|
|
=item Misplaced _ in number
|
|
|
|
(W) An underline in a decimal constant wasn't on a 3-digit boundary.
|
|
|
|
=item Missing $ on loop variable
|
|
|
|
(F) Apparently you've been programming in B<csh> too much. Variables are always
|
|
mentioned with the $ in Perl, unlike in the shells, where it can vary from
|
|
one line to the next.
|
|
|
|
=item Missing comma after first argument to %s function
|
|
|
|
(F) While certain functions allow you to specify a filehandle or an
|
|
"indirect object" before the argument list, this ain't one of them.
|
|
|
|
=item Missing operator before %s?
|
|
|
|
(S) This is an educated guess made in conjunction with the message "%s
|
|
found where operator expected". Often the missing operator is a comma.
|
|
|
|
=item Missing right bracket
|
|
|
|
(F) The lexer counted more opening curly brackets (braces) than closing ones.
|
|
As a general rule, you'll find it's missing near the place you were last
|
|
editing.
|
|
|
|
=item Modification of a read-only value attempted
|
|
|
|
(F) You tried, directly or indirectly, to change the value of a
|
|
constant. You didn't, of course, try "2 = 1", because the compiler
|
|
catches that. But an easy way to do the same thing is:
|
|
|
|
sub mod { $_[0] = 1 }
|
|
mod(2);
|
|
|
|
Another way is to assign to a substr() that's off the end of the string.
|
|
|
|
=item Modification of non-creatable array value attempted, subscript %d
|
|
|
|
(F) You tried to make an array value spring into existence, and the
|
|
subscript was probably negative, even counting from end of the array
|
|
backwards.
|
|
|
|
=item Modification of non-creatable hash value attempted, subscript "%s"
|
|
|
|
(P) You tried to make a hash value spring into existence, and it couldn't
|
|
be created for some peculiar reason.
|
|
|
|
=item Module name must be constant
|
|
|
|
(F) Only a bare module name is allowed as the first argument to a "use".
|
|
|
|
=item msg%s not implemented
|
|
|
|
(F) You don't have System V message IPC on your system.
|
|
|
|
=item Multidimensional syntax %s not supported
|
|
|
|
(W) Multidimensional arrays aren't written like C<$foo[1,2,3]>. They're written
|
|
like C<$foo[1][2][3]>, as in C.
|
|
|
|
=item Name "%s::%s" used only once: possible typo
|
|
|
|
(W) Typographical errors often show up as unique variable names.
|
|
If you had a good reason for having a unique name, then just mention
|
|
it again somehow to suppress the message. The C<use vars> pragma is
|
|
provided for just this purpose.
|
|
|
|
=item Negative length
|
|
|
|
(F) You tried to do a read/write/send/recv operation with a buffer length
|
|
that is less than 0. This is difficult to imagine.
|
|
|
|
=item nested *?+ in regexp
|
|
|
|
(F) You can't quantify a quantifier without intervening parentheses. So
|
|
things like ** or +* or ?* are illegal.
|
|
|
|
Note, however, that the minimal matching quantifiers, C<*?>, C<+?>, and C<??> appear
|
|
to be nested quantifiers, but aren't. See L<perlre>.
|
|
|
|
=item No #! line
|
|
|
|
(F) The setuid emulator requires that scripts have a well-formed #! line
|
|
even on machines that don't support the #! construct.
|
|
|
|
=item No %s allowed while running setuid
|
|
|
|
(F) Certain operations are deemed to be too insecure for a setuid or setgid
|
|
script to even be allowed to attempt. Generally speaking there will be
|
|
another way to do what you want that is, if not secure, at least securable.
|
|
See L<perlsec>.
|
|
|
|
=item No B<-e> allowed in setuid scripts
|
|
|
|
(F) A setuid script can't be specified by the user.
|
|
|
|
=item No comma allowed after %s
|
|
|
|
(F) A list operator that has a filehandle or "indirect object" is not
|
|
allowed to have a comma between that and the following arguments.
|
|
Otherwise it'd be just another one of the arguments.
|
|
|
|
One possible cause for this is that you expected to have imported a
|
|
constant to your name space with B<use> or B<import> while no such
|
|
importing took place, it may for example be that your operating system
|
|
does not support that particular constant. Hopefully you did use an
|
|
explicit import list for the constants you expect to see, please see
|
|
L<perlfunc/use> and L<perlfunc/import>. While an explicit import list
|
|
would probably have caught this error earlier it naturally does not
|
|
remedy the fact that your operating system still does not support that
|
|
constant. Maybe you have a typo in the constants of the symbol import
|
|
list of B<use> or B<import> or in the constant name at the line where
|
|
this error was triggered?
|
|
|
|
=item No command into which to pipe on command line
|
|
|
|
(F) An error peculiar to VMS. Perl handles its own command line redirection,
|
|
and found a '|' at the end of the command line, so it doesn't know where you
|
|
want to pipe the output from this command.
|
|
|
|
=item No DB::DB routine defined
|
|
|
|
(F) The currently executing code was compiled with the B<-d> switch,
|
|
but for some reason the perl5db.pl file (or some facsimile thereof)
|
|
didn't define a routine to be called at the beginning of each
|
|
statement. Which is odd, because the file should have been required
|
|
automatically, and should have blown up the require if it didn't parse
|
|
right.
|
|
|
|
=item No dbm on this machine
|
|
|
|
(P) This is counted as an internal error, because every machine should
|
|
supply dbm nowadays, because Perl comes with SDBM. See L<SDBM_File>.
|
|
|
|
=item No DBsub routine
|
|
|
|
(F) The currently executing code was compiled with the B<-d> switch,
|
|
but for some reason the perl5db.pl file (or some facsimile thereof)
|
|
didn't define a DB::sub routine to be called at the beginning of each
|
|
ordinary subroutine call.
|
|
|
|
=item No error file after 2E<gt> or 2E<gt>E<gt> on command line
|
|
|
|
(F) An error peculiar to VMS. Perl handles its own command line redirection,
|
|
and found a '2E<gt>' or a '2E<gt>E<gt>' on the command line, but can't find
|
|
the name of the file to which to write data destined for stderr.
|
|
|
|
=item No input file after E<lt> on command line
|
|
|
|
(F) An error peculiar to VMS. Perl handles its own command line redirection,
|
|
and found a 'E<lt>' on the command line, but can't find the name of the file
|
|
from which to read data for stdin.
|
|
|
|
=item No output file after E<gt> on command line
|
|
|
|
(F) An error peculiar to VMS. Perl handles its own command line redirection,
|
|
and found a lone 'E<gt>' at the end of the command line, so it doesn't know
|
|
where you wanted to redirect stdout.
|
|
|
|
=item No output file after E<gt> or E<gt>E<gt> on command line
|
|
|
|
(F) An error peculiar to VMS. Perl handles its own command line redirection,
|
|
and found a 'E<gt>' or a 'E<gt>E<gt>' on the command line, but can't find the
|
|
name of the file to which to write data destined for stdout.
|
|
|
|
=item No Perl script found in input
|
|
|
|
(F) You called C<perl -x>, but no line was found in the file beginning
|
|
with #! and containing the word "perl".
|
|
|
|
=item No setregid available
|
|
|
|
(F) Configure didn't find anything resembling the setregid() call for
|
|
your system.
|
|
|
|
=item No setreuid available
|
|
|
|
(F) Configure didn't find anything resembling the setreuid() call for
|
|
your system.
|
|
|
|
=item No space allowed after B<-I>
|
|
|
|
(F) The argument to B<-I> must follow the B<-I> immediately with no
|
|
intervening space.
|
|
|
|
=item No such array field
|
|
|
|
(F) You tried to access an array as a hash, but the field name used is
|
|
not defined. The hash at index 0 should map all valid field names to
|
|
array indices for that to work.
|
|
|
|
=item No such field "%s" in variable %s of type %s
|
|
|
|
(F) You tried to access a field of a typed variable where the type
|
|
does not know about the field name. The field names are looked up in
|
|
the %FIELDS hash in the type package at compile time. The %FIELDS hash
|
|
is usually set up with the 'fields' pragma.
|
|
|
|
=item No such pipe open
|
|
|
|
(P) An error peculiar to VMS. The internal routine my_pclose() tried to
|
|
close a pipe which hadn't been opened. This should have been caught earlier as
|
|
an attempt to close an unopened filehandle.
|
|
|
|
=item No such signal: SIG%s
|
|
|
|
(W) You specified a signal name as a subscript to %SIG that was not recognized.
|
|
Say C<kill -l> in your shell to see the valid signal names on your system.
|
|
|
|
=item Not a CODE reference
|
|
|
|
(F) Perl was trying to evaluate a reference to a code value (that is, a
|
|
subroutine), but found a reference to something else instead. You can
|
|
use the ref() function to find out what kind of ref it really was.
|
|
See also L<perlref>.
|
|
|
|
=item Not a format reference
|
|
|
|
(F) I'm not sure how you managed to generate a reference to an anonymous
|
|
format, but this indicates you did, and that it didn't exist.
|
|
|
|
=item Not a GLOB reference
|
|
|
|
(F) Perl was trying to evaluate a reference to a "typeglob" (that is,
|
|
a symbol table entry that looks like C<*foo>), but found a reference to
|
|
something else instead. You can use the ref() function to find out
|
|
what kind of ref it really was. See L<perlref>.
|
|
|
|
=item Not a HASH reference
|
|
|
|
(F) Perl was trying to evaluate a reference to a hash value, but
|
|
found a reference to something else instead. You can use the ref()
|
|
function to find out what kind of ref it really was. See L<perlref>.
|
|
|
|
=item Not a perl script
|
|
|
|
(F) The setuid emulator requires that scripts have a well-formed #! line
|
|
even on machines that don't support the #! construct. The line must
|
|
mention perl.
|
|
|
|
=item Not a SCALAR reference
|
|
|
|
(F) Perl was trying to evaluate a reference to a scalar value, but
|
|
found a reference to something else instead. You can use the ref()
|
|
function to find out what kind of ref it really was. See L<perlref>.
|
|
|
|
=item Not a subroutine reference
|
|
|
|
(F) Perl was trying to evaluate a reference to a code value (that is, a
|
|
subroutine), but found a reference to something else instead. You can
|
|
use the ref() function to find out what kind of ref it really was.
|
|
See also L<perlref>.
|
|
|
|
=item Not a subroutine reference in overload table
|
|
|
|
(F) An attempt was made to specify an entry in an overloading table that
|
|
doesn't somehow point to a valid subroutine. See L<overload>.
|
|
|
|
=item Not an ARRAY reference
|
|
|
|
(F) Perl was trying to evaluate a reference to an array value, but
|
|
found a reference to something else instead. You can use the ref()
|
|
function to find out what kind of ref it really was. See L<perlref>.
|
|
|
|
=item Not enough arguments for %s
|
|
|
|
(F) The function requires more arguments than you specified.
|
|
|
|
=item Not enough format arguments
|
|
|
|
(W) A format specified more picture fields than the next line supplied.
|
|
See L<perlform>.
|
|
|
|
=item Null filename used
|
|
|
|
(F) You can't require the null filename, especially because on many machines
|
|
that means the current directory! See L<perlfunc/require>.
|
|
|
|
=item Null picture in formline
|
|
|
|
(F) The first argument to formline must be a valid format picture
|
|
specification. It was found to be empty, which probably means you
|
|
supplied it an uninitialized value. See L<perlform>.
|
|
|
|
=item NULL OP IN RUN
|
|
|
|
(P) Some internal routine called run() with a null opcode pointer.
|
|
|
|
=item Null realloc
|
|
|
|
(P) An attempt was made to realloc NULL.
|
|
|
|
=item NULL regexp argument
|
|
|
|
(P) The internal pattern matching routines blew it big time.
|
|
|
|
=item NULL regexp parameter
|
|
|
|
(P) The internal pattern matching routines are out of their gourd.
|
|
|
|
=item Number too long
|
|
|
|
(F) Perl limits the representation of decimal numbers in programs to about
|
|
about 250 characters. You've exceeded that length. Future versions of
|
|
Perl are likely to eliminate this arbitrary limitation. In the meantime,
|
|
try using scientific notation (e.g. "1e6" instead of "1_000_000").
|
|
|
|
=item Odd number of elements in hash assignment
|
|
|
|
(S) You specified an odd number of elements to initialize a hash, which
|
|
is odd, because hashes come in key/value pairs.
|
|
|
|
=item Offset outside string
|
|
|
|
(F) You tried to do a read/write/send/recv operation with an offset
|
|
pointing outside the buffer. This is difficult to imagine.
|
|
The sole exception to this is that C<sysread()>ing past the buffer
|
|
will extend the buffer and zero pad the new area.
|
|
|
|
=item oops: oopsAV
|
|
|
|
(S) An internal warning that the grammar is screwed up.
|
|
|
|
=item oops: oopsHV
|
|
|
|
(S) An internal warning that the grammar is screwed up.
|
|
|
|
=item Operation `%s': no method found, %s
|
|
|
|
(F) An attempt was made to perform an overloaded operation for which
|
|
no handler was defined. While some handlers can be autogenerated in
|
|
terms of other handlers, there is no default handler for any
|
|
operation, unless C<fallback> overloading key is specified to be
|
|
true. See L<overload>.
|
|
|
|
=item Operator or semicolon missing before %s
|
|
|
|
(S) You used a variable or subroutine call where the parser was
|
|
expecting an operator. The parser has assumed you really meant
|
|
to use an operator, but this is highly likely to be incorrect.
|
|
For example, if you say "*foo *foo" it will be interpreted as
|
|
if you said "*foo * 'foo'".
|
|
|
|
=item Out of memory for yacc stack
|
|
|
|
(F) The yacc parser wanted to grow its stack so it could continue parsing,
|
|
but realloc() wouldn't give it more memory, virtual or otherwise.
|
|
|
|
=item Out of memory during request for %s
|
|
|
|
(X|F) The malloc() function returned 0, indicating there was insufficient
|
|
remaining memory (or virtual memory) to satisfy the request.
|
|
|
|
The request was judged to be small, so the possibility to trap it
|
|
depends on the way perl was compiled. By default it is not trappable.
|
|
However, if compiled for this, Perl may use the contents of C<$^M> as
|
|
an emergency pool after die()ing with this message. In this case the
|
|
error is trappable I<once>.
|
|
|
|
=item Out of memory during "large" request for %s
|
|
|
|
(F) The malloc() function returned 0, indicating there was insufficient
|
|
remaining memory (or virtual memory) to satisfy the request. However,
|
|
the request was judged large enough (compile-time default is 64K), so
|
|
a possibility to shut down by trapping this error is granted.
|
|
|
|
=item Out of memory during ridiculously large request
|
|
|
|
(F) You can't allocate more than 2^31+"small amount" bytes. This error
|
|
is most likely to be caused by a typo in the Perl program. e.g., C<$arr[time]>
|
|
instead of C<$arr[$time]>.
|
|
|
|
=item page overflow
|
|
|
|
(W) A single call to write() produced more lines than can fit on a page.
|
|
See L<perlform>.
|
|
|
|
=item panic: ck_grep
|
|
|
|
(P) Failed an internal consistency check trying to compile a grep.
|
|
|
|
=item panic: ck_split
|
|
|
|
(P) Failed an internal consistency check trying to compile a split.
|
|
|
|
=item panic: corrupt saved stack index
|
|
|
|
(P) The savestack was requested to restore more localized values than there
|
|
are in the savestack.
|
|
|
|
=item panic: die %s
|
|
|
|
(P) We popped the context stack to an eval context, and then discovered
|
|
it wasn't an eval context.
|
|
|
|
=item panic: do_match
|
|
|
|
(P) The internal pp_match() routine was called with invalid operational data.
|
|
|
|
=item panic: do_split
|
|
|
|
(P) Something terrible went wrong in setting up for the split.
|
|
|
|
=item panic: do_subst
|
|
|
|
(P) The internal pp_subst() routine was called with invalid operational data.
|
|
|
|
=item panic: do_trans
|
|
|
|
(P) The internal do_trans() routine was called with invalid operational data.
|
|
|
|
=item panic: frexp
|
|
|
|
(P) The library function frexp() failed, making printf("%f") impossible.
|
|
|
|
=item panic: goto
|
|
|
|
(P) We popped the context stack to a context with the specified label,
|
|
and then discovered it wasn't a context we know how to do a goto in.
|
|
|
|
=item panic: INTERPCASEMOD
|
|
|
|
(P) The lexer got into a bad state at a case modifier.
|
|
|
|
=item panic: INTERPCONCAT
|
|
|
|
(P) The lexer got into a bad state parsing a string with brackets.
|
|
|
|
=item panic: last
|
|
|
|
(P) We popped the context stack to a block context, and then discovered
|
|
it wasn't a block context.
|
|
|
|
=item panic: leave_scope clearsv
|
|
|
|
(P) A writable lexical variable became read-only somehow within the scope.
|
|
|
|
=item panic: leave_scope inconsistency
|
|
|
|
(P) The savestack probably got out of sync. At least, there was an
|
|
invalid enum on the top of it.
|
|
|
|
=item panic: malloc
|
|
|
|
(P) Something requested a negative number of bytes of malloc.
|
|
|
|
=item panic: mapstart
|
|
|
|
(P) The compiler is screwed up with respect to the map() function.
|
|
|
|
=item panic: null array
|
|
|
|
(P) One of the internal array routines was passed a null AV pointer.
|
|
|
|
=item panic: pad_alloc
|
|
|
|
(P) The compiler got confused about which scratch pad it was allocating
|
|
and freeing temporaries and lexicals from.
|
|
|
|
=item panic: pad_free curpad
|
|
|
|
(P) The compiler got confused about which scratch pad it was allocating
|
|
and freeing temporaries and lexicals from.
|
|
|
|
=item panic: pad_free po
|
|
|
|
(P) An invalid scratch pad offset was detected internally.
|
|
|
|
=item panic: pad_reset curpad
|
|
|
|
(P) The compiler got confused about which scratch pad it was allocating
|
|
and freeing temporaries and lexicals from.
|
|
|
|
=item panic: pad_sv po
|
|
|
|
(P) An invalid scratch pad offset was detected internally.
|
|
|
|
=item panic: pad_swipe curpad
|
|
|
|
(P) The compiler got confused about which scratch pad it was allocating
|
|
and freeing temporaries and lexicals from.
|
|
|
|
=item panic: pad_swipe po
|
|
|
|
(P) An invalid scratch pad offset was detected internally.
|
|
|
|
=item panic: pp_iter
|
|
|
|
(P) The foreach iterator got called in a non-loop context frame.
|
|
|
|
=item panic: realloc
|
|
|
|
(P) Something requested a negative number of bytes of realloc.
|
|
|
|
=item panic: restartop
|
|
|
|
(P) Some internal routine requested a goto (or something like it), and
|
|
didn't supply the destination.
|
|
|
|
=item panic: return
|
|
|
|
(P) We popped the context stack to a subroutine or eval context, and
|
|
then discovered it wasn't a subroutine or eval context.
|
|
|
|
=item panic: scan_num
|
|
|
|
(P) scan_num() got called on something that wasn't a number.
|
|
|
|
=item panic: sv_insert
|
|
|
|
(P) The sv_insert() routine was told to remove more string than there
|
|
was string.
|
|
|
|
=item panic: top_env
|
|
|
|
(P) The compiler attempted to do a goto, or something weird like that.
|
|
|
|
=item panic: yylex
|
|
|
|
(P) The lexer got into a bad state while processing a case modifier.
|
|
|
|
=item Parentheses missing around "%s" list
|
|
|
|
(W) You said something like
|
|
|
|
my $foo, $bar = @_;
|
|
|
|
when you meant
|
|
|
|
my ($foo, $bar) = @_;
|
|
|
|
Remember that "my" and "local" bind closer than comma.
|
|
|
|
=item Perl %3.3f required--this is only version %s, stopped
|
|
|
|
(F) The module in question uses features of a version of Perl more recent
|
|
than the currently running version. How long has it been since you upgraded,
|
|
anyway? See L<perlfunc/require>.
|
|
|
|
=item Permission denied
|
|
|
|
(F) The setuid emulator in suidperl decided you were up to no good.
|
|
|
|
=item pid %d not a child
|
|
|
|
(W) A warning peculiar to VMS. Waitpid() was asked to wait for a process which
|
|
isn't a subprocess of the current process. While this is fine from VMS'
|
|
perspective, it's probably not what you intended.
|
|
|
|
=item POSIX getpgrp can't take an argument
|
|
|
|
(F) Your C compiler uses POSIX getpgrp(), which takes no argument, unlike
|
|
the BSD version, which takes a pid.
|
|
|
|
=item Possible attempt to put comments in qw() list
|
|
|
|
(W) qw() lists contain items separated by whitespace; as with literal
|
|
strings, comment characters are not ignored, but are instead treated
|
|
as literal data. (You may have used different delimiters than the
|
|
parentheses shown here; braces are also frequently used.)
|
|
|
|
You probably wrote something like this:
|
|
|
|
@list = qw(
|
|
a # a comment
|
|
b # another comment
|
|
);
|
|
|
|
when you should have written this:
|
|
|
|
@list = qw(
|
|
a
|
|
b
|
|
);
|
|
|
|
If you really want comments, build your list the
|
|
old-fashioned way, with quotes and commas:
|
|
|
|
@list = (
|
|
'a', # a comment
|
|
'b', # another comment
|
|
);
|
|
|
|
=item Possible attempt to separate words with commas
|
|
|
|
(W) qw() lists contain items separated by whitespace; therefore commas
|
|
aren't needed to separate the items. (You may have used different
|
|
delimiters than the parentheses shown here; braces are also frequently
|
|
used.)
|
|
|
|
You probably wrote something like this:
|
|
|
|
qw! a, b, c !;
|
|
|
|
which puts literal commas into some of the list items. Write it without
|
|
commas if you don't want them to appear in your data:
|
|
|
|
qw! a b c !;
|
|
|
|
=item Possible memory corruption: %s overflowed 3rd argument
|
|
|
|
(F) An ioctl() or fcntl() returned more than Perl was bargaining for.
|
|
Perl guesses a reasonable buffer size, but puts a sentinel byte at the
|
|
end of the buffer just in case. This sentinel byte got clobbered, and
|
|
Perl assumes that memory is now corrupted. See L<perlfunc/ioctl>.
|
|
|
|
=item Precedence problem: open %s should be open(%s)
|
|
|
|
(S) The old irregular construct
|
|
|
|
open FOO || die;
|
|
|
|
is now misinterpreted as
|
|
|
|
open(FOO || die);
|
|
|
|
because of the strict regularization of Perl 5's grammar into unary
|
|
and list operators. (The old open was a little of both.) You must
|
|
put parentheses around the filehandle, or use the new "or" operator
|
|
instead of "||".
|
|
|
|
=item print on closed filehandle %s
|
|
|
|
(W) The filehandle you're printing on got itself closed sometime before now.
|
|
Check your logic flow.
|
|
|
|
=item printf on closed filehandle %s
|
|
|
|
(W) The filehandle you're writing to got itself closed sometime before now.
|
|
Check your logic flow.
|
|
|
|
=item Probable precedence problem on %s
|
|
|
|
(W) The compiler found a bareword where it expected a conditional,
|
|
which often indicates that an || or && was parsed as part of the
|
|
last argument of the previous construct, for example:
|
|
|
|
open FOO || die;
|
|
|
|
=item Prototype mismatch: %s vs %s
|
|
|
|
(S) The subroutine being declared or defined had previously been declared
|
|
or defined with a different function prototype.
|
|
|
|
=item Range iterator outside integer range
|
|
|
|
(F) One (or both) of the numeric arguments to the range operator ".."
|
|
are outside the range which can be represented by integers internally.
|
|
One possible workaround is to force Perl to use magical string
|
|
increment by prepending "0" to your numbers.
|
|
|
|
=item Read on closed filehandle E<lt>%sE<gt>
|
|
|
|
(W) The filehandle you're reading from got itself closed sometime before now.
|
|
Check your logic flow.
|
|
|
|
=item Reallocation too large: %lx
|
|
|
|
(F) You can't allocate more than 64K on an MS-DOS machine.
|
|
|
|
=item Recompile perl with B<-D>DEBUGGING to use B<-D> switch
|
|
|
|
(F) You can't use the B<-D> option unless the code to produce the
|
|
desired output is compiled into Perl, which entails some overhead,
|
|
which is why it's currently left out of your copy.
|
|
|
|
=item Recursive inheritance detected in package '%s'
|
|
|
|
(F) More than 100 levels of inheritance were used. Probably indicates
|
|
an unintended loop in your inheritance hierarchy.
|
|
|
|
=item Recursive inheritance detected while looking for method '%s' in package '%s'
|
|
|
|
(F) More than 100 levels of inheritance were encountered while invoking a
|
|
method. Probably indicates an unintended loop in your inheritance hierarchy.
|
|
|
|
=item Reference found where even-sized list expected
|
|
|
|
(W) You gave a single reference where Perl was expecting a list with
|
|
an even number of elements (for assignment to a hash). This
|
|
usually means that you used the anon hash constructor when you meant
|
|
to use parens. In any case, a hash requires key/value B<pairs>.
|
|
|
|
%hash = { one => 1, two => 2, }; # WRONG
|
|
%hash = [ qw/ an anon array / ]; # WRONG
|
|
%hash = ( one => 1, two => 2, ); # right
|
|
%hash = qw( one 1 two 2 ); # also fine
|
|
|
|
=item Reference miscount in sv_replace()
|
|
|
|
(W) The internal sv_replace() function was handed a new SV with a
|
|
reference count of other than 1.
|
|
|
|
=item regexp *+ operand could be empty
|
|
|
|
(F) The part of the regexp subject to either the * or + quantifier
|
|
could match an empty string.
|
|
|
|
=item regexp memory corruption
|
|
|
|
(P) The regular expression engine got confused by what the regular
|
|
expression compiler gave it.
|
|
|
|
=item regexp out of space
|
|
|
|
(P) A "can't happen" error, because safemalloc() should have caught it earlier.
|
|
|
|
=item regexp too big
|
|
|
|
(F) The current implementation of regular expressions uses shorts as
|
|
address offsets within a string. Unfortunately this means that if
|
|
the regular expression compiles to longer than 32767, it'll blow up.
|
|
Usually when you want a regular expression this big, there is a better
|
|
way to do it with multiple statements. See L<perlre>.
|
|
|
|
=item Reversed %s= operator
|
|
|
|
(W) You wrote your assignment operator backwards. The = must always
|
|
comes last, to avoid ambiguity with subsequent unary operators.
|
|
|
|
=item Runaway format
|
|
|
|
(F) Your format contained the ~~ repeat-until-blank sequence, but it
|
|
produced 200 lines at once, and the 200th line looked exactly like the
|
|
199th line. Apparently you didn't arrange for the arguments to exhaust
|
|
themselves, either by using ^ instead of @ (for scalar variables), or by
|
|
shifting or popping (for array variables). See L<perlform>.
|
|
|
|
=item Scalar value @%s[%s] better written as $%s[%s]
|
|
|
|
(W) You've used an array slice (indicated by @) to select a single element of
|
|
an array. Generally it's better to ask for a scalar value (indicated by $).
|
|
The difference is that C<$foo[&bar]> always behaves like a scalar, both when
|
|
assigning to it and when evaluating its argument, while C<@foo[&bar]> behaves
|
|
like a list when you assign to it, and provides a list context to its
|
|
subscript, which can do weird things if you're expecting only one subscript.
|
|
|
|
On the other hand, if you were actually hoping to treat the array
|
|
element as a list, you need to look into how references work, because
|
|
Perl will not magically convert between scalars and lists for you. See
|
|
L<perlref>.
|
|
|
|
=item Scalar value @%s{%s} better written as $%s{%s}
|
|
|
|
(W) You've used a hash slice (indicated by @) to select a single element of
|
|
a hash. Generally it's better to ask for a scalar value (indicated by $).
|
|
The difference is that C<$foo{&bar}> always behaves like a scalar, both when
|
|
assigning to it and when evaluating its argument, while C<@foo{&bar}> behaves
|
|
like a list when you assign to it, and provides a list context to its
|
|
subscript, which can do weird things if you're expecting only one subscript.
|
|
|
|
On the other hand, if you were actually hoping to treat the hash
|
|
element as a list, you need to look into how references work, because
|
|
Perl will not magically convert between scalars and lists for you. See
|
|
L<perlref>.
|
|
|
|
=item Script is not setuid/setgid in suidperl
|
|
|
|
(F) Oddly, the suidperl program was invoked on a script without a setuid
|
|
or setgid bit set. This doesn't make much sense.
|
|
|
|
=item Search pattern not terminated
|
|
|
|
(F) The lexer couldn't find the final delimiter of a // or m{}
|
|
construct. Remember that bracketing delimiters count nesting level.
|
|
Missing the leading C<$> from a variable C<$m> may cause this error.
|
|
|
|
=item %sseek() on unopened file
|
|
|
|
(W) You tried to use the seek() or sysseek() function on a filehandle that
|
|
was either never opened or has since been closed.
|
|
|
|
=item select not implemented
|
|
|
|
(F) This machine doesn't implement the select() system call.
|
|
|
|
=item sem%s not implemented
|
|
|
|
(F) You don't have System V semaphore IPC on your system.
|
|
|
|
=item semi-panic: attempt to dup freed string
|
|
|
|
(S) The internal newSVsv() routine was called to duplicate a scalar
|
|
that had previously been marked as free.
|
|
|
|
=item Semicolon seems to be missing
|
|
|
|
(W) A nearby syntax error was probably caused by a missing semicolon,
|
|
or possibly some other missing operator, such as a comma.
|
|
|
|
=item Send on closed socket
|
|
|
|
(W) The filehandle you're sending to got itself closed sometime before now.
|
|
Check your logic flow.
|
|
|
|
=item Sequence (? incomplete
|
|
|
|
(F) A regular expression ended with an incomplete extension (?.
|
|
See L<perlre>.
|
|
|
|
=item Sequence (?#... not terminated
|
|
|
|
(F) A regular expression comment must be terminated by a closing
|
|
parenthesis. Embedded parentheses aren't allowed. See L<perlre>.
|
|
|
|
=item Sequence (?%s...) not implemented
|
|
|
|
(F) A proposed regular expression extension has the character reserved
|
|
but has not yet been written. See L<perlre>.
|
|
|
|
=item Sequence (?%s...) not recognized
|
|
|
|
(F) You used a regular expression extension that doesn't make sense.
|
|
See L<perlre>.
|
|
|
|
=item Server error
|
|
|
|
Also known as "500 Server error".
|
|
|
|
B<This is a CGI error, not a Perl error>.
|
|
|
|
You need to make sure your script is executable, is accessible by the user
|
|
CGI is running the script under (which is probably not the user account you
|
|
tested it under), does not rely on any environment variables (like PATH)
|
|
from the user it isn't running under, and isn't in a location where the CGI
|
|
server can't find it, basically, more or less. Please see the following
|
|
for more information:
|
|
|
|
http://www.perl.com/CPAN/doc/FAQs/cgi/idiots-guide.html
|
|
http://www.perl.com/CPAN/doc/FAQs/cgi/perl-cgi-faq.html
|
|
ftp://rtfm.mit.edu/pub/usenet/news.answers/www/cgi-faq
|
|
http://hoohoo.ncsa.uiuc.edu/cgi/interface.html
|
|
http://www-genome.wi.mit.edu/WWW/faqs/www-security-faq.html
|
|
|
|
You should also look at L<perlfaq9>.
|
|
|
|
=item setegid() not implemented
|
|
|
|
(F) You tried to assign to C<$)>, and your operating system doesn't support
|
|
the setegid() system call (or equivalent), or at least Configure didn't
|
|
think so.
|
|
|
|
=item seteuid() not implemented
|
|
|
|
(F) You tried to assign to C<$E<gt>>, and your operating system doesn't support
|
|
the seteuid() system call (or equivalent), or at least Configure didn't
|
|
think so.
|
|
|
|
=item setrgid() not implemented
|
|
|
|
(F) You tried to assign to C<$(>, and your operating system doesn't support
|
|
the setrgid() system call (or equivalent), or at least Configure didn't
|
|
think so.
|
|
|
|
=item setruid() not implemented
|
|
|
|
(F) You tried to assign to C<$E<lt>>, and your operating system doesn't support
|
|
the setruid() system call (or equivalent), or at least Configure didn't
|
|
think so.
|
|
|
|
=item Setuid/gid script is writable by world
|
|
|
|
(F) The setuid emulator won't run a script that is writable by the world,
|
|
because the world might have written on it already.
|
|
|
|
=item shm%s not implemented
|
|
|
|
(F) You don't have System V shared memory IPC on your system.
|
|
|
|
=item shutdown() on closed fd
|
|
|
|
(W) You tried to do a shutdown on a closed socket. Seems a bit superfluous.
|
|
|
|
=item SIG%s handler "%s" not defined
|
|
|
|
(W) The signal handler named in %SIG doesn't, in fact, exist. Perhaps you
|
|
put it into the wrong package?
|
|
|
|
=item sort is now a reserved word
|
|
|
|
(F) An ancient error message that almost nobody ever runs into anymore.
|
|
But before sort was a keyword, people sometimes used it as a filehandle.
|
|
|
|
=item Sort subroutine didn't return a numeric value
|
|
|
|
(F) A sort comparison routine must return a number. You probably blew
|
|
it by not using C<E<lt>=E<gt>> or C<cmp>, or by not using them correctly.
|
|
See L<perlfunc/sort>.
|
|
|
|
=item Sort subroutine didn't return single value
|
|
|
|
(F) A sort comparison subroutine may not return a list value with more
|
|
or less than one element. See L<perlfunc/sort>.
|
|
|
|
=item Split loop
|
|
|
|
(P) The split was looping infinitely. (Obviously, a split shouldn't iterate
|
|
more times than there are characters of input, which is what happened.)
|
|
See L<perlfunc/split>.
|
|
|
|
=item Stat on unopened file E<lt>%sE<gt>
|
|
|
|
(W) You tried to use the stat() function (or an equivalent file test)
|
|
on a filehandle that was either never opened or has since been closed.
|
|
|
|
=item Statement unlikely to be reached
|
|
|
|
(W) You did an exec() with some statement after it other than a die().
|
|
This is almost always an error, because exec() never returns unless
|
|
there was a failure. You probably wanted to use system() instead,
|
|
which does return. To suppress this warning, put the exec() in a block
|
|
by itself.
|
|
|
|
=item Strange *+?{} on zero-length expression
|
|
|
|
(W) You applied a regular expression quantifier in a place where it
|
|
makes no sense, such as on a zero-width assertion.
|
|
Try putting the quantifier inside the assertion instead. For example,
|
|
the way to match "abc" provided that it is followed by three
|
|
repetitions of "xyz" is C</abc(?=(?:xyz){3})/>, not C</abc(?=xyz){3}/>.
|
|
|
|
=item Stub found while resolving method `%s' overloading `%s' in package `%s'
|
|
|
|
(P) Overloading resolution over @ISA tree may be broken by importation stubs.
|
|
Stubs should never be implicitely created, but explicit calls to C<can>
|
|
may break this.
|
|
|
|
=item Subroutine %s redefined
|
|
|
|
(W) You redefined a subroutine. To suppress this warning, say
|
|
|
|
{
|
|
local $^W = 0;
|
|
eval "sub name { ... }";
|
|
}
|
|
|
|
=item Substitution loop
|
|
|
|
(P) The substitution was looping infinitely. (Obviously, a
|
|
substitution shouldn't iterate more times than there are characters of
|
|
input, which is what happened.) See the discussion of substitution in
|
|
L<perlop/"Quote and Quote-like Operators">.
|
|
|
|
=item Substitution pattern not terminated
|
|
|
|
(F) The lexer couldn't find the interior delimiter of a s/// or s{}{}
|
|
construct. Remember that bracketing delimiters count nesting level.
|
|
Missing the leading C<$> from variable C<$s> may cause this error.
|
|
|
|
=item Substitution replacement not terminated
|
|
|
|
(F) The lexer couldn't find the final delimiter of a s/// or s{}{}
|
|
construct. Remember that bracketing delimiters count nesting level.
|
|
Missing the leading C<$> from variable C<$s> may cause this error.
|
|
|
|
=item substr outside of string
|
|
|
|
(S),(W) You tried to reference a substr() that pointed outside of a
|
|
string. That is, the absolute value of the offset was larger than the
|
|
length of the string. See L<perlfunc/substr>. This warning is
|
|
mandatory if substr is used in an lvalue context (as the left hand side
|
|
of an assignment or as a subroutine argument for example).
|
|
|
|
=item suidperl is no longer needed since %s
|
|
|
|
(F) Your Perl was compiled with B<-D>SETUID_SCRIPTS_ARE_SECURE_NOW, but a
|
|
version of the setuid emulator somehow got run anyway.
|
|
|
|
=item syntax error
|
|
|
|
(F) Probably means you had a syntax error. Common reasons include:
|
|
|
|
A keyword is misspelled.
|
|
A semicolon is missing.
|
|
A comma is missing.
|
|
An opening or closing parenthesis is missing.
|
|
An opening or closing brace is missing.
|
|
A closing quote is missing.
|
|
|
|
Often there will be another error message associated with the syntax
|
|
error giving more information. (Sometimes it helps to turn on B<-w>.)
|
|
The error message itself often tells you where it was in the line when
|
|
it decided to give up. Sometimes the actual error is several tokens
|
|
before this, because Perl is good at understanding random input.
|
|
Occasionally the line number may be misleading, and once in a blue moon
|
|
the only way to figure out what's triggering the error is to call
|
|
C<perl -c> repeatedly, chopping away half the program each time to see
|
|
if the error went away. Sort of the cybernetic version of S<20 questions>.
|
|
|
|
=item syntax error at line %d: `%s' unexpected
|
|
|
|
(A) You've accidentally run your script through the Bourne shell
|
|
instead of Perl. Check the #! line, or manually feed your script
|
|
into Perl yourself.
|
|
|
|
=item System V %s is not implemented on this machine
|
|
|
|
(F) You tried to do something with a function beginning with "sem",
|
|
"shm", or "msg" but that System V IPC is not implemented in your
|
|
machine. In some machines the functionality can exist but be
|
|
unconfigured. Consult your system support.
|
|
|
|
=item Syswrite on closed filehandle
|
|
|
|
(W) The filehandle you're writing to got itself closed sometime before now.
|
|
Check your logic flow.
|
|
|
|
=item Target of goto is too deeply nested
|
|
|
|
(F) You tried to use C<goto> to reach a label that was too deeply
|
|
nested for Perl to reach. Perl is doing you a favor by refusing.
|
|
|
|
=item tell() on unopened file
|
|
|
|
(W) You tried to use the tell() function on a filehandle that was either
|
|
never opened or has since been closed.
|
|
|
|
=item Test on unopened file E<lt>%sE<gt>
|
|
|
|
(W) You tried to invoke a file test operator on a filehandle that isn't
|
|
open. Check your logic. See also L<perlfunc/-X>.
|
|
|
|
=item That use of $[ is unsupported
|
|
|
|
(F) Assignment to C<$[> is now strictly circumscribed, and interpreted as
|
|
a compiler directive. You may say only one of
|
|
|
|
$[ = 0;
|
|
$[ = 1;
|
|
...
|
|
local $[ = 0;
|
|
local $[ = 1;
|
|
...
|
|
|
|
This is to prevent the problem of one module changing the array base
|
|
out from under another module inadvertently. See L<perlvar/$[>.
|
|
|
|
=item The %s function is unimplemented
|
|
|
|
The function indicated isn't implemented on this architecture, according
|
|
to the probings of Configure.
|
|
|
|
=item The crypt() function is unimplemented due to excessive paranoia
|
|
|
|
(F) Configure couldn't find the crypt() function on your machine,
|
|
probably because your vendor didn't supply it, probably because they
|
|
think the U.S. Government thinks it's a secret, or at least that they
|
|
will continue to pretend that it is. And if you quote me on that, I
|
|
will deny it.
|
|
|
|
=item The stat preceding C<-l _> wasn't an lstat
|
|
|
|
(F) It makes no sense to test the current stat buffer for symbolic linkhood
|
|
if the last stat that wrote to the stat buffer already went past
|
|
the symlink to get to the real file. Use an actual filename instead.
|
|
|
|
=item times not implemented
|
|
|
|
(F) Your version of the C library apparently doesn't do times(). I suspect
|
|
you're not running on Unix.
|
|
|
|
=item Too few args to syscall
|
|
|
|
(F) There has to be at least one argument to syscall() to specify the
|
|
system call to call, silly dilly.
|
|
|
|
=item Too late for "B<-T>" option
|
|
|
|
(X) The #! line (or local equivalent) in a Perl script contains the
|
|
B<-T> option, but Perl was not invoked with B<-T> in its command line.
|
|
This is an error because, by the time Perl discovers a B<-T> in a
|
|
script, it's too late to properly taint everything from the environment.
|
|
So Perl gives up.
|
|
|
|
If the Perl script is being executed as a command using the #!
|
|
mechanism (or its local equivalent), this error can usually be fixed
|
|
by editing the #! line so that the B<-T> option is a part of Perl's
|
|
first argument: e.g. change C<perl -n -T> to C<perl -T -n>.
|
|
|
|
If the Perl script is being executed as C<perl scriptname>, then the
|
|
B<-T> option must appear on the command line: C<perl -T scriptname>.
|
|
|
|
=item Too late for "-%s" option
|
|
|
|
(X) The #! line (or local equivalent) in a Perl script contains the
|
|
B<-M> or B<-m> option. This is an error because B<-M> and B<-m> options
|
|
are not intended for use inside scripts. Use the C<use> pragma instead.
|
|
|
|
=item Too many ('s
|
|
|
|
=item Too many )'s
|
|
|
|
(A) You've accidentally run your script through B<csh> instead
|
|
of Perl. Check the #! line, or manually feed your script into
|
|
Perl yourself.
|
|
|
|
=item Too many args to syscall
|
|
|
|
(F) Perl supports a maximum of only 14 args to syscall().
|
|
|
|
=item Too many arguments for %s
|
|
|
|
(F) The function requires fewer arguments than you specified.
|
|
|
|
=item trailing \ in regexp
|
|
|
|
(F) The regular expression ends with an unbackslashed backslash. Backslash
|
|
it. See L<perlre>.
|
|
|
|
=item Transliteration pattern not terminated
|
|
|
|
(F) The lexer couldn't find the interior delimiter of a tr/// or tr[][]
|
|
or y/// or y[][] construct. Missing the leading C<$> from variables
|
|
C<$tr> or C<$y> may cause this error.
|
|
|
|
=item Transliteration replacement not terminated
|
|
|
|
(F) The lexer couldn't find the final delimiter of a tr/// or tr[][]
|
|
construct.
|
|
|
|
=item truncate not implemented
|
|
|
|
(F) Your machine doesn't implement a file truncation mechanism that
|
|
Configure knows about.
|
|
|
|
=item Type of arg %d to %s must be %s (not %s)
|
|
|
|
(F) This function requires the argument in that position to be of a
|
|
certain type. Arrays must be @NAME or C<@{EXPR}>. Hashes must be
|
|
%NAME or C<%{EXPR}>. No implicit dereferencing is allowed--use the
|
|
{EXPR} forms as an explicit dereference. See L<perlref>.
|
|
|
|
=item umask: argument is missing initial 0
|
|
|
|
(W) A umask of 222 is incorrect. It should be 0222, because octal
|
|
literals always start with 0 in Perl, as in C.
|
|
|
|
=item umask not implemented
|
|
|
|
(F) Your machine doesn't implement the umask function and you tried
|
|
to use it to restrict permissions for yourself (EXPR & 0700).
|
|
|
|
=item Unable to create sub named "%s"
|
|
|
|
(F) You attempted to create or access a subroutine with an illegal name.
|
|
|
|
=item Unbalanced context: %d more PUSHes than POPs
|
|
|
|
(W) The exit code detected an internal inconsistency in how many execution
|
|
contexts were entered and left.
|
|
|
|
=item Unbalanced saves: %d more saves than restores
|
|
|
|
(W) The exit code detected an internal inconsistency in how many
|
|
values were temporarily localized.
|
|
|
|
=item Unbalanced scopes: %d more ENTERs than LEAVEs
|
|
|
|
(W) The exit code detected an internal inconsistency in how many blocks
|
|
were entered and left.
|
|
|
|
=item Unbalanced tmps: %d more allocs than frees
|
|
|
|
(W) The exit code detected an internal inconsistency in how many mortal
|
|
scalars were allocated and freed.
|
|
|
|
=item Undefined format "%s" called
|
|
|
|
(F) The format indicated doesn't seem to exist. Perhaps it's really in
|
|
another package? See L<perlform>.
|
|
|
|
=item Undefined sort subroutine "%s" called
|
|
|
|
(F) The sort comparison routine specified doesn't seem to exist. Perhaps
|
|
it's in a different package? See L<perlfunc/sort>.
|
|
|
|
=item Undefined subroutine &%s called
|
|
|
|
(F) The subroutine indicated hasn't been defined, or if it was, it
|
|
has since been undefined.
|
|
|
|
=item Undefined subroutine called
|
|
|
|
(F) The anonymous subroutine you're trying to call hasn't been defined,
|
|
or if it was, it has since been undefined.
|
|
|
|
=item Undefined subroutine in sort
|
|
|
|
(F) The sort comparison routine specified is declared but doesn't seem to
|
|
have been defined yet. See L<perlfunc/sort>.
|
|
|
|
=item Undefined top format "%s" called
|
|
|
|
(F) The format indicated doesn't seem to exist. Perhaps it's really in
|
|
another package? See L<perlform>.
|
|
|
|
=item Undefined value assigned to typeglob
|
|
|
|
(W) An undefined value was assigned to a typeglob, a la C<*foo = undef>.
|
|
This does nothing. It's possible that you really mean C<undef *foo>.
|
|
|
|
=item unexec of %s into %s failed!
|
|
|
|
(F) The unexec() routine failed for some reason. See your local FSF
|
|
representative, who probably put it there in the first place.
|
|
|
|
=item Unknown BYTEORDER
|
|
|
|
(F) There are no byte-swapping functions for a machine with this byte order.
|
|
|
|
=item unmatched () in regexp
|
|
|
|
(F) Unbackslashed parentheses must always be balanced in regular
|
|
expressions. If you're a vi user, the % key is valuable for finding
|
|
the matching parenthesis. See L<perlre>.
|
|
|
|
=item Unmatched right bracket
|
|
|
|
(F) The lexer counted more closing curly brackets (braces) than opening
|
|
ones, so you're probably missing an opening bracket. As a general
|
|
rule, you'll find the missing one (so to speak) near the place you were
|
|
last editing.
|
|
|
|
=item unmatched [] in regexp
|
|
|
|
(F) The brackets around a character class must match. If you wish to
|
|
include a closing bracket in a character class, backslash it or put it first.
|
|
See L<perlre>.
|
|
|
|
=item Unquoted string "%s" may clash with future reserved word
|
|
|
|
(W) You used a bareword that might someday be claimed as a reserved word.
|
|
It's best to put such a word in quotes, or capitalize it somehow, or insert
|
|
an underbar into it. You might also declare it as a subroutine.
|
|
|
|
=item Unrecognized character %s
|
|
|
|
(F) The Perl parser has no idea what to do with the specified character
|
|
in your Perl script (or eval). Perhaps you tried to run a compressed
|
|
script, a binary program, or a directory as a Perl program.
|
|
|
|
=item Unrecognized signal name "%s"
|
|
|
|
(F) You specified a signal name to the kill() function that was not recognized.
|
|
Say C<kill -l> in your shell to see the valid signal names on your system.
|
|
|
|
=item Unrecognized switch: -%s (-h will show valid options)
|
|
|
|
(F) You specified an illegal option to Perl. Don't do that.
|
|
(If you think you didn't do that, check the #! line to see if it's
|
|
supplying the bad switch on your behalf.)
|
|
|
|
=item Unsuccessful %s on filename containing newline
|
|
|
|
(W) A file operation was attempted on a filename, and that operation
|
|
failed, PROBABLY because the filename contained a newline, PROBABLY
|
|
because you forgot to chop() or chomp() it off. See L<perlfunc/chomp>.
|
|
|
|
=item Unsupported directory function "%s" called
|
|
|
|
(F) Your machine doesn't support opendir() and readdir().
|
|
|
|
=item Unsupported function fork
|
|
|
|
(F) Your version of executable does not support forking.
|
|
|
|
Note that under some systems, like OS/2, there may be different flavors of
|
|
Perl executables, some of which may support fork, some not. Try changing
|
|
the name you call Perl by to C<perl_>, C<perl__>, and so on.
|
|
|
|
=item Unsupported function %s
|
|
|
|
(F) This machine doesn't implement the indicated function, apparently.
|
|
At least, Configure doesn't think so.
|
|
|
|
=item Unsupported socket function "%s" called
|
|
|
|
(F) Your machine doesn't support the Berkeley socket mechanism, or at
|
|
least that's what Configure thought.
|
|
|
|
=item Unterminated E<lt>E<gt> operator
|
|
|
|
(F) The lexer saw a left angle bracket in a place where it was expecting
|
|
a term, so it's looking for the corresponding right angle bracket, and not
|
|
finding it. Chances are you left some needed parentheses out earlier in
|
|
the line, and you really meant a "less than".
|
|
|
|
=item Use of "$$<digit>" to mean "${$}<digit>" is deprecated
|
|
|
|
(D) Perl versions before 5.004 misinterpreted any type marker followed
|
|
by "$" and a digit. For example, "$$0" was incorrectly taken to mean
|
|
"${$}0" instead of "${$0}". This bug is (mostly) fixed in Perl 5.004.
|
|
|
|
However, the developers of Perl 5.004 could not fix this bug completely,
|
|
because at least two widely-used modules depend on the old meaning of
|
|
"$$0" in a string. So Perl 5.004 still interprets "$$<digit>" in the
|
|
old (broken) way inside strings; but it generates this message as a
|
|
warning. And in Perl 5.005, this special treatment will cease.
|
|
|
|
=item Use of $# is deprecated
|
|
|
|
(D) This was an ill-advised attempt to emulate a poorly defined B<awk> feature.
|
|
Use an explicit printf() or sprintf() instead.
|
|
|
|
=item Use of $* is deprecated
|
|
|
|
(D) This variable magically turned on multi-line pattern matching, both for
|
|
you and for any luckless subroutine that you happen to call. You should
|
|
use the new C<//m> and C<//s> modifiers now to do that without the dangerous
|
|
action-at-a-distance effects of C<$*>.
|
|
|
|
=item Use of %s in printf format not supported
|
|
|
|
(F) You attempted to use a feature of printf that is accessible from
|
|
only C. This usually means there's a better way to do it in Perl.
|
|
|
|
=item Use of bare E<lt>E<lt> to mean E<lt>E<lt>"" is deprecated
|
|
|
|
(D) You are now encouraged to use the explicitly quoted form if you
|
|
wish to use an empty line as the terminator of the here-document.
|
|
|
|
=item Use of implicit split to @_ is deprecated
|
|
|
|
(D) It makes a lot of work for the compiler when you clobber a
|
|
subroutine's argument list, so it's better if you assign the results of
|
|
a split() explicitly to an array (or list).
|
|
|
|
=item Use of inherited AUTOLOAD for non-method %s() is deprecated
|
|
|
|
(D) As an (ahem) accidental feature, C<AUTOLOAD> subroutines are looked
|
|
up as methods (using the C<@ISA> hierarchy) even when the subroutines to
|
|
be autoloaded were called as plain functions (e.g. C<Foo::bar()>), not
|
|
as methods (e.g. C<Foo-E<gt>bar()> or C<$obj-E<gt>bar()>).
|
|
|
|
This bug will be rectified in Perl 5.005, which will use method lookup
|
|
only for methods' C<AUTOLOAD>s. However, there is a significant base
|
|
of existing code that may be using the old behavior. So, as an
|
|
interim step, Perl 5.004 issues an optional warning when non-methods
|
|
use inherited C<AUTOLOAD>s.
|
|
|
|
The simple rule is: Inheritance will not work when autoloading
|
|
non-methods. The simple fix for old code is: In any module that used to
|
|
depend on inheriting C<AUTOLOAD> for non-methods from a base class named
|
|
C<BaseClass>, execute C<*AUTOLOAD = \&BaseClass::AUTOLOAD> during startup.
|
|
|
|
In code that currently says C<use AutoLoader; @ISA = qw(AutoLoader);> you
|
|
should remove AutoLoader from @ISA and change C<use AutoLoader;> to
|
|
C<use AutoLoader 'AUTOLOAD';>.
|
|
|
|
=item Use of reserved word "%s" is deprecated
|
|
|
|
(D) The indicated bareword is a reserved word. Future versions of perl
|
|
may use it as a keyword, so you're better off either explicitly quoting
|
|
the word in a manner appropriate for its context of use, or using a
|
|
different name altogether. The warning can be suppressed for subroutine
|
|
names by either adding a C<&> prefix, or using a package qualifier,
|
|
e.g. C<&our()>, or C<Foo::our()>.
|
|
|
|
=item Use of %s is deprecated
|
|
|
|
(D) The construct indicated is no longer recommended for use, generally
|
|
because there's a better way to do it, and also because the old way has
|
|
bad side effects.
|
|
|
|
=item Use of uninitialized value
|
|
|
|
(W) An undefined value was used as if it were already defined. It was
|
|
interpreted as a "" or a 0, but maybe it was a mistake. To suppress this
|
|
warning assign an initial value to your variables.
|
|
|
|
=item Useless use of "re" pragma
|
|
|
|
(W) You did C<use re;> without any arguments. That isn't very useful.
|
|
|
|
=item Useless use of %s in void context
|
|
|
|
(W) You did something without a side effect in a context that does nothing
|
|
with the return value, such as a statement that doesn't return a value
|
|
from a block, or the left side of a scalar comma operator. Very often
|
|
this points not to stupidity on your part, but a failure of Perl to parse
|
|
your program the way you thought it would. For example, you'd get this
|
|
if you mixed up your C precedence with Python precedence and said
|
|
|
|
$one, $two = 1, 2;
|
|
|
|
when you meant to say
|
|
|
|
($one, $two) = (1, 2);
|
|
|
|
Another common error is to use ordinary parentheses to construct a list
|
|
reference when you should be using square or curly brackets, for
|
|
example, if you say
|
|
|
|
$array = (1,2);
|
|
|
|
when you should have said
|
|
|
|
$array = [1,2];
|
|
|
|
The square brackets explicitly turn a list value into a scalar value,
|
|
while parentheses do not. So when a parenthesized list is evaluated in
|
|
a scalar context, the comma is treated like C's comma operator, which
|
|
throws away the left argument, which is not what you want. See
|
|
L<perlref> for more on this.
|
|
|
|
=item untie attempted while %d inner references still exist
|
|
|
|
(W) A copy of the object returned from C<tie> (or C<tied>) was still
|
|
valid when C<untie> was called.
|
|
|
|
=item Value of %s can be "0"; test with defined()
|
|
|
|
(W) In a conditional expression, you used <HANDLE>, <*> (glob), C<each()>,
|
|
or C<readdir()> as a boolean value. Each of these constructs can return a
|
|
value of "0"; that would make the conditional expression false, which is
|
|
probably not what you intended. When using these constructs in conditional
|
|
expressions, test their values with the C<defined> operator.
|
|
|
|
=item Variable "%s" is not imported%s
|
|
|
|
(F) While "use strict" in effect, you referred to a global variable
|
|
that you apparently thought was imported from another module, because
|
|
something else of the same name (usually a subroutine) is exported
|
|
by that module. It usually means you put the wrong funny character
|
|
on the front of your variable.
|
|
|
|
=item Variable "%s" may be unavailable
|
|
|
|
(W) An inner (nested) I<anonymous> subroutine is inside a I<named>
|
|
subroutine, and outside that is another subroutine; and the anonymous
|
|
(innermost) subroutine is referencing a lexical variable defined in
|
|
the outermost subroutine. For example:
|
|
|
|
sub outermost { my $a; sub middle { sub { $a } } }
|
|
|
|
If the anonymous subroutine is called or referenced (directly or
|
|
indirectly) from the outermost subroutine, it will share the variable
|
|
as you would expect. But if the anonymous subroutine is called or
|
|
referenced when the outermost subroutine is not active, it will see
|
|
the value of the shared variable as it was before and during the
|
|
*first* call to the outermost subroutine, which is probably not what
|
|
you want.
|
|
|
|
In these circumstances, it is usually best to make the middle
|
|
subroutine anonymous, using the C<sub {}> syntax. Perl has specific
|
|
support for shared variables in nested anonymous subroutines; a named
|
|
subroutine in between interferes with this feature.
|
|
|
|
=item Variable "%s" will not stay shared
|
|
|
|
(W) An inner (nested) I<named> subroutine is referencing a lexical
|
|
variable defined in an outer subroutine.
|
|
|
|
When the inner subroutine is called, it will probably see the value of
|
|
the outer subroutine's variable as it was before and during the
|
|
*first* call to the outer subroutine; in this case, after the first
|
|
call to the outer subroutine is complete, the inner and outer
|
|
subroutines will no longer share a common value for the variable. In
|
|
other words, the variable will no longer be shared.
|
|
|
|
Furthermore, if the outer subroutine is anonymous and references a
|
|
lexical variable outside itself, then the outer and inner subroutines
|
|
will I<never> share the given variable.
|
|
|
|
This problem can usually be solved by making the inner subroutine
|
|
anonymous, using the C<sub {}> syntax. When inner anonymous subs that
|
|
reference variables in outer subroutines are called or referenced,
|
|
they are automatically rebound to the current values of such
|
|
variables.
|
|
|
|
=item Variable syntax
|
|
|
|
(A) You've accidentally run your script through B<csh> instead
|
|
of Perl. Check the #! line, or manually feed your script into
|
|
Perl yourself.
|
|
|
|
=item perl: warning: Setting locale failed.
|
|
|
|
(S) The whole warning message will look something like:
|
|
|
|
perl: warning: Setting locale failed.
|
|
perl: warning: Please check that your locale settings:
|
|
LC_ALL = "En_US",
|
|
LANG = (unset)
|
|
are supported and installed on your system.
|
|
perl: warning: Falling back to the standard locale ("C").
|
|
|
|
Exactly what were the failed locale settings varies. In the above the
|
|
settings were that the LC_ALL was "En_US" and the LANG had no value.
|
|
This error means that Perl detected that you and/or your system
|
|
administrator have set up the so-called variable system but Perl could
|
|
not use those settings. This was not dead serious, fortunately: there
|
|
is a "default locale" called "C" that Perl can and will use, the
|
|
script will be run. Before you really fix the problem, however, you
|
|
will get the same error message each time you run Perl. How to really
|
|
fix the problem can be found in L<perllocale> section B<LOCALE PROBLEMS>.
|
|
|
|
=item Warning: something's wrong
|
|
|
|
(W) You passed warn() an empty string (the equivalent of C<warn "">) or
|
|
you called it with no args and C<$_> was empty.
|
|
|
|
=item Warning: unable to close filehandle %s properly
|
|
|
|
(S) The implicit close() done by an open() got an error indication on the
|
|
close(). This usually indicates your file system ran out of disk space.
|
|
|
|
=item Warning: Use of "%s" without parentheses is ambiguous
|
|
|
|
(S) You wrote a unary operator followed by something that looks like a
|
|
binary operator that could also have been interpreted as a term or
|
|
unary operator. For instance, if you know that the rand function
|
|
has a default argument of 1.0, and you write
|
|
|
|
rand + 5;
|
|
|
|
you may THINK you wrote the same thing as
|
|
|
|
rand() + 5;
|
|
|
|
but in actual fact, you got
|
|
|
|
rand(+5);
|
|
|
|
So put in parentheses to say what you really mean.
|
|
|
|
=item Write on closed filehandle
|
|
|
|
(W) The filehandle you're writing to got itself closed sometime before now.
|
|
Check your logic flow.
|
|
|
|
=item X outside of string
|
|
|
|
(F) You had a pack template that specified a relative position before
|
|
the beginning of the string being unpacked. See L<perlfunc/pack>.
|
|
|
|
=item x outside of string
|
|
|
|
(F) You had a pack template that specified a relative position after
|
|
the end of the string being unpacked. See L<perlfunc/pack>.
|
|
|
|
=item Xsub "%s" called in sort
|
|
|
|
(F) The use of an external subroutine as a sort comparison is not yet supported.
|
|
|
|
=item Xsub called in sort
|
|
|
|
(F) The use of an external subroutine as a sort comparison is not yet supported.
|
|
|
|
=item You can't use C<-l> on a filehandle
|
|
|
|
(F) A filehandle represents an opened file, and when you opened the file it
|
|
already went past any symlink you are presumably trying to look for.
|
|
Use a filename instead.
|
|
|
|
=item YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!
|
|
|
|
(F) And you probably never will, because you probably don't have the
|
|
sources to your kernel, and your vendor probably doesn't give a rip
|
|
about what you want. Your best bet is to use the wrapsuid script in
|
|
the eg directory to put a setuid C wrapper around your script.
|
|
|
|
=item You need to quote "%s"
|
|
|
|
(W) You assigned a bareword as a signal handler name. Unfortunately, you
|
|
already have a subroutine of that name declared, which means that Perl 5
|
|
will try to call the subroutine when the assignment is executed, which is
|
|
probably not what you want. (If it IS what you want, put an & in front.)
|
|
|
|
=item [gs]etsockopt() on closed fd
|
|
|
|
(W) You tried to get or set a socket option on a closed socket.
|
|
Did you forget to check the return value of your socket() call?
|
|
See L<perlfunc/getsockopt>.
|
|
|
|
=item \1 better written as $1
|
|
|
|
(W) Outside of patterns, backreferences live on as variables. The use
|
|
of backslashes is grandfathered on the right-hand side of a
|
|
substitution, but stylistically it's better to use the variable form
|
|
because other Perl programmers will expect it, and it works better
|
|
if there are more than 9 backreferences.
|
|
|
|
=item '|' and 'E<lt>' may not both be specified on command line
|
|
|
|
(F) An error peculiar to VMS. Perl does its own command line redirection, and
|
|
found that STDIN was a pipe, and that you also tried to redirect STDIN using
|
|
'E<lt>'. Only one STDIN stream to a customer, please.
|
|
|
|
=item '|' and 'E<gt>' may not both be specified on command line
|
|
|
|
(F) An error peculiar to VMS. Perl does its own command line redirection, and
|
|
thinks you tried to redirect stdout both to a file and into a pipe to another
|
|
command. You need to choose one or the other, though nothing's stopping you
|
|
from piping into a program or Perl script which 'splits' output into two
|
|
streams, such as
|
|
|
|
open(OUT,">$ARGV[0]") or die "Can't write to $ARGV[0]: $!";
|
|
while (<STDIN>) {
|
|
print;
|
|
print OUT;
|
|
}
|
|
close OUT;
|
|
|
|
=item Got an error from DosAllocMem
|
|
|
|
(P) An error peculiar to OS/2. Most probably you're using an obsolete
|
|
version of Perl, and this should not happen anyway.
|
|
|
|
=item Malformed PERLLIB_PREFIX
|
|
|
|
(F) An error peculiar to OS/2. PERLLIB_PREFIX should be of the form
|
|
|
|
prefix1;prefix2
|
|
|
|
or
|
|
|
|
prefix1 prefix2
|
|
|
|
with nonempty prefix1 and prefix2. If C<prefix1> is indeed a prefix
|
|
of a builtin library search path, prefix2 is substituted. The error
|
|
may appear if components are not found, or are too long. See
|
|
"PERLLIB_PREFIX" in F<README.os2>.
|
|
|
|
=item PERL_SH_DIR too long
|
|
|
|
(F) An error peculiar to OS/2. PERL_SH_DIR is the directory to find the
|
|
C<sh>-shell in. See "PERL_SH_DIR" in F<README.os2>.
|
|
|
|
=item Process terminated by SIG%s
|
|
|
|
(W) This is a standard message issued by OS/2 applications, while *nix
|
|
applications die in silence. It is considered a feature of the OS/2
|
|
port. One can easily disable this by appropriate sighandlers, see
|
|
L<perlipc/"Signals">. See also "Process terminated by SIGTERM/SIGINT"
|
|
in F<README.os2>.
|
|
|
|
=back
|
|
|