SID-01021: Why TWiki can't locate a module that is already in the @INC?

Status:	Answered	TWiki version:	5.0.0	Perl version:	5.8.8
Category:	CategoryError	Server OS:	RHEL 5	Last update:	15 years ago

Hi guys,

recently I was installing some perl modules on my RHEL 5 with perl version 5.8.8 and all instalations went fine. I can see that the modules exist in the @INC but my TWiki site claims that it can't find them returning an error: Can't locate Net/LDAP.pm in @INC (a lot of paths which contain the modules) at TWiki.pm line xx. When I do perl -e 'use Net::LDAP'; it doesn't return anything which means perl can find that module. Also TWiki was configured corectly and works fine except the plugins that use specific modules I had to install, I've even added the paths to setLib .cfg just in case.

Edit: Here is the full error (the same appears in apache error log).

Software error:

Can't locate Net/LDAP.pm in @INC (@INC contains: /usr/local/apache2/htdocs/twiki5_pdc/lib . /usr/lib64/perl5/site_perl/5.8.8/x86_64-linux-thread-multi /usr/lib/perl5/site_perl/5.8.8 /usr/lib/perl5/site_perl /usr/lib64/perl5/vendor_perl/5.8.8/x86_64-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.8 /usr/lib/perl5/vendor_perl /usr/lib64/perl5/5.8.8/x86_64-linux-thread-multi /usr/lib/perl5/5.8.8 /usr/local/apache2/htdocs/twiki5_pdc/lib/CPAN/lib /usr/lib64/perl5 /usr/lib/perl5/site_perl/5.8.8 /usr/local/apache2/htdocs/twiki5_pdc/lib/CPAN/lib//arch /usr/local/apache2/htdocs/twiki5_pdc/lib/CPAN/lib//5.8.8/x86_64-linux-thread-multi /usr/local/apache2/htdocs/twiki5_pdc/lib/CPAN/lib//5.8.8 /usr/local/apache2/htdocs/twiki5_pdc/lib/CPAN/lib/) at /usr/local/apache2/htdocs/twiki5_pdc/lib/TWiki/Contrib/LdapContrib.pm line 21.
BEGIN failed--compilation aborted at /usr/local/apache2/htdocs/twiki5_pdc/lib/TWiki/Contrib/LdapContrib.pm line 21.
Compilation failed in require at /usr/local/apache2/htdocs/twiki5_pdc/lib/TWiki/LoginManager/LdapApacheLogin.pm line 22.
BEGIN failed--compilation aborted at /usr/local/apache2/htdocs/twiki5_pdc/lib/TWiki/LoginManager/LdapApacheLogin.pm line 22.
Compilation failed in require at (eval 15) line 3.

For help, please send mail to the webmaster ( root@localhost), giving this error message and the time and date of the error.

-- MikeMokkas - 2010-11-10

Discussion and Answer

Possibly more than one Perl installation in your system? Do a which perl and compare that to the shebang line in twiki/bin/view.

-- PeterThoeny - 2010-11-10

which perl returned : /usr/bin/perl and the shebang line of twiki/bin/view is: #!/usr/bin/perl -wT .

-- MikeMokkas - 2010-11-16

Editted: I noticed a dot between the first path and the rest of them, is it correct syntactically?Also in the later paths there are some double slashes // , is that also intended?

-- MikeMokkas - 2010-11-16

Dot means current directory; double slashes are OK on Unix/Linux.

Check if Net/LDAP.pm is really in the @INC path, and check if the dirs and files are readable by the webserver user.

-- PeterThoeny - 2010-11-16

ok I think its ok now, it seems to work, the reason was most probably the fact that I was installing the perl modules as root and probably apache/twiki couldn't read them. Thanks for the help

-- MikeMokkas - 2010-11-18

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