Question

TWiki is not finding my CGI::Session module but I installed.

I was evaluating some wiki engines to power our knowledge base at the company. I was reading about wikis at Wikipedia and I decided to choose a structured wiki. Since the two engines available are JotSpot and TWiki and JotSpot has no sign of life since it was acquired by Google (also see their blog at http://blog.jot.com/), I installed TWiki on a Sun Ultra 250 running Solaris 9.

To install you simply unpack the .tar.gz file in Apache's and run the /bin/configure in your browser. I'm still having some problems with TWiki.

My Apache's log file is showing that TWiki is not finding the Session CPAN module. I downloaded and compiled the module as showed in http://twiki.org/cgi-bin/view/TWiki/HowToInstallCpanModules

[root@hostname]/var/apache/logs # tail error_log [Mon Jul 30 08:58:00 2007] [error] [client 148.91.124.241] Premature end of script headers: /var/apache/htdocs/bin/view Can't locate CGI/Session.pm in @INC (@INC contains: /usr/local/lib/perl5/site_perl/5.8.8/CGI /var/apache/htdocs/lib/CPAN/lib/arch /var/apache/htdocs/lib/CPAN/lib/5.8.8/sun4-solaris /var/apache/htdocs/lib/CPAN/lib/5.8.8 /var/apache/htdocs/lib/CPAN/lib /var/apache/htdocs/lib . /usr/local/lib/perl5/5.8.8/sun4-solaris /usr/local/lib/perl5/5.8.8 /usr/local/lib/perl5/site_perl/5.8.8/sun4-solaris /usr/local/lib/perl5/site_perl/5.8.8 /usr/local/lib/perl5/site_perl) at (eval 13) line 1. BEGIN failed--compilation aborted at (eval 13) line 1. [Mon Jul 30 08:58:09 2007] [error] [client 148.91.124.241] Premature end of script headers: /var/apache/htdocs/bin/view Can't locate CGI/Session.pm in @INC (@INC contains: /var/apache/htdocs/lib/CPAN/lib/arch /var/apache/htdocs/lib/CPAN/lib/5.8.8/sun4-solaris /var/apache/htdocs/lib/CPAN/lib/5.8.8 /var/apache/htdocs/lib/CPAN/lib /var/apache/htdocs/lib . /usr/local/lib/perl5/5.8.8/sun4-solaris /usr/local/lib/perl5/5.8.8 /usr/local/lib/perl5/site_perl/5.8.8/sun4-solaris /usr/local/lib/perl5/site_perl/5.8.8 /usr/local/lib/perl5/site_perl) at (eval 13) line 1. BEGIN failed--compilation aborted at (eval 13) line 1. [Mon Jul 30 11:10:35 2007] [error] [client 148.91.124.241] Premature end of script headers: /var/apache/htdocs/bin/view Can't locate CGI/Session.pm in @INC (@INC contains: /usr/local/lib/perl5/site_perl/5.8.8/sun4-solaris/auto /var/apache/htdocs/lib/CPAN/lib/arch /var/apache/htdocs/lib/CPAN/lib/5.8.8/sun4-solaris /var/apache/htdocs/lib/CPAN/lib/5.8.8 /var/apache/htdocs/lib/CPAN/lib /var/apache/htdocs/lib . /usr/local/lib/perl5/5.8.8/sun4-solaris /usr/local/lib/perl5/5.8.8 /usr/local/lib/perl5/site_perl/5.8.8/sun4-solaris /usr/local/lib/perl5/site_perl/5.8.8 /usr/local/lib/perl5/site_perl) at (eval 13) line 1. BEGIN failed--compilation aborted at (eval 13) line 1. [Mon Jul 30 11:12:28 2007] [error] [client 148.91.124.241] Premature end of script headers: /var/apache/htdocs/bin/view

The error is that TWiki is not using the @localPerlLibPath, where I believe that I'm pointing to the right directory.

[root@hostname]/var/apache/htdocs/bin # cat LocalLib.cfg

# TWiki Enterprise Collaboration Platform, http://TWiki.org/ #
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version. For
# more details read LICENSE in the root of this distribution. #
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. #
# LocalLib.cfg: local path settings for TWiki

use vars qw( $twikiLibPath $CPANBASE );

# -------------- Path to lib directory containing TWiki.pm. #
# REQUIRED # The absolute path to the 'lib' directory in your installation..

$twikiLibPath = "/var/apache/htdocs/lib";

# -------------- Extra path components to include in @INC
# OPTIONAL # If you need to use perl modules that are not installed in the standard # directories (e.g. you have downloaded extra modules for use with plugins) # then you can add the absolute paths to those modules below. You can list # as many directories as you want, separated by commas.

# @localPerlLibPath = ( '/path/to/dir' );

@localPerlLibPath = ( '/usr/local/lib/perl5/site_perl/5.8.8/sun4-solaris/auto');

#It was used other locations, see a list below
# http://www.perl.com/pub/a/2002/04/10/mod_perl.html?page=3 has good advice # on installing CPAN modules without superuser privileges.

1; # Required for successful module loading

The files are already in the directory.
[root@hostname]/usr/local/lib/perl5/site_perl/5.8.8 # ls -lR
.: total 6
drwxr-x--- 3 root other 512 Jul 28 14:45 auto
drwxr-x--- 3 root other 512 Jul 28 14:45 CGI
drwxr-xr-x 3 root bin 512 Jul 28 14:45 sun4-solaris

./auto: total 2
drwxr-x--- 3 root other 512 Jul 28 14:45 CGI

./auto/CGI: total 2
drwxr-x--- 2 root other 512 Jul 28 14:45 Session

./auto/CGI/Session: total 52
-r--r--r-- 1 root other 476 Jul 28 14:43 atime.al
-r--r--r-- 1 root other 414 Jul 28 14:43 autosplit.ix
-r--r--r-- 1 root other 1079 Jul 28 14:43 clear.al
-r--r--r-- 1 root other 403 Jul 28 14:43 close.al
-r--r--r-- 1 root other 472 Jul 28 14:43 ctime.al
-r--r--r-- 1 root other 497 Jul 28 14:43 delete.al
-r--r--r-- 1 root other 1060 Jul 28 14:43 dump.al
-r--r--r-- 1 root other 429 Jul 28 14:43 error.al
-r--r--r-- 1 root other 372 Jul 28 14:43 errstr.al
-r--r--r-- 1 root other 1097 Jul 28 14:43 expire.al
-r--r--r-- 1 root other 373 Jul 28 14:43 expires.al
-r--r--r-- 1 root other 698 Jul 28 14:43 header.al
-r--r--r-- 1 root other 431 Jul 28 14:43 is_new.al
-r--r--r-- 1 root other 1085 Jul 28 14:43 load_param.al
-r--r--r-- 1 root other 484 Jul 28 14:43 name.al
-r--r--r-- 1 root other 425 Jul 28 14:43 param_hashref.al
-r--r--r-- 1 root other 431 Jul 28 14:43 remote_addr.al
-r--r--r-- 1 root other 1452 Jul 28 14:43 save_param.al
-r--r--r-- 1 root other 829 Jul 28 14:43 sync_param.al
-r--r--r-- 1 root other 881 Jul 28 14:43 _time_alias.al
-r--r--r-- 1 root other 436 Jul 28 14:43 version.al

./CGI: total 66
drwxr-x--- 4 root other 512 Jul 28 14:45 Session
-r--r--r-- 1 root other 32280 Jul 26 2003 Session.pm

./CGI/Session: total 168
-r--r--r-- 1 root other 2142 Nov 27 2002 BluePrint.pm
-r--r--r-- 1 root other 22106 Jul 26 2003 CookBook.pm
-r--r--r-- 1 root other 3755 Jul 26 2003 DB_File.pm
-r--r--r-- 1 root other 4354 Mar 14 2003 Example.pm
-r--r--r-- 1 root other 4246 Jul 26 2003 File.pm
drwxr-x--- 2 root other 512 Jul 28 14:45 ID
-r--r--r-- 1 root other 5842 Jul 26 2003 MySQL.pm
-r--r--r-- 1 root other 6567 Jul 26 2003 PostgreSQL.pm
drwxr-x--- 2 root other 512 Jul 28 14:45 Serialize
-r--r--r-- 1 root other 29776 Jul 26 2003 Tutorial.pm

./CGI/Session/ID: total 16
-r--r--r-- 1 root other 3304 Nov 27 2002 Incr.pm
-r--r--r-- 1 root other 1783 Nov 27 2002 MD5.pm
-r--r--r-- 1 root other 1576 Mar 14 2003 SHA1.pm

./CGI/Session/Serialize: total 18
-r--r--r-- 1 root other 2584 Jul 26 2003 Default.pm
-r--r--r-- 1 root other 2057 Nov 27 2002 FreezeThaw.pm
-r--r--r-- 1 root other 2151 Nov 27 2002 Storable.pm

./sun4-solaris: total 2
drwxr-x--- 3 root other 512 Jul 28 14:45 auto

./sun4-solaris/auto: total 2
drwxr-x--- 3 root other 512 Jul 28 14:45 CGI

./sun4-solaris/auto/CGI: total 2
drwxr-x--- 2 root other 512 Jul 28 14:45 Session

./sun4-solaris/auto/CGI/Session: total 0

So my question is: which value should I put in my LocalLib.cfg?

Environment

-- EmersonTakahashi - 04 Aug 2007

Answer

If you answer a question - or someone answered one of your questions - please remember to edit the page and set the status to answered. The status selector is below the edit box.

Don't point @INC at the auto directory.

The easiest way to check what path is required is to:

perl -e 'use CGI::Session'

and add -I options to point to directories until it works. The -I options then indicate what should be in @localPerlLibPath.

-- CrawfordCurrie - 06 Aug 2007

I found the answer to my problem. Apache is running under the user nobody. I issued chown -R nobody:nobody in /usr/local/lib/perl5/site_perl/5.8.8 and it worked.

-- EmersonTakahashi - 10 Aug 2007