Perl "Can't locate" problem

Are you sure PERL5LIB is set when the scripts are run from within the webserver?  You could look at $ENV{PERL5LIB}.

You could add the directory to your perl script.  In your perl file (not the module .pm file, the perl file), add
    use lib '/usr/local/share/project';

Hope this helps,

Browser display:
A.pm: ========> A.pm
B.pm: =========> B.pm
C.pm: ===========> C.pm

directory as follow:
drwxr-xr-x    3 jccs0519     jccs0519         4096 May 11 13:21 A/
-rw-r--r--    1 jccs0519     jccs0519           86 May 11 13:18 A.pm
-rwxr-xr-x    1 jccs0519     jccs0519          295 May 11 13:22 test.cgi*

./A:
total 8
drwxr-xr-x    2 jccs0519     jccs0519         4096 May 11 13:22 B/
-rw-r--r--    1 jccs0519     jccs0519           72 May 11 13:21 B.pm

./A/B:
total 4
-rw-r--r--    1 jccs0519     jccs0519           76 May 11 13:22 C.pm

===========================================================
#!/usr/bin/perl

use CGI qw/:standard/;
use CGI::Carp qw(fatalsToBrowser);
use A;
use A::B;
use A::B::C;
$|=1;

print CGI->header();
print start_html("testing");
print qq[<li>A.pm: ];
A->say_apm();
print qq[<li>B.pm: ];
A::B->say_bpm();
print qq[<li>C.pm: ];
A::B::C->say_cpm();
print end_html;
================================
package A;

BEGIN {}

sub say_apm {
   print "========> A.pm\n";
}

return 1;

END {}
==========================
package A::B;

sub say_bpm {
   print "=========> B.pm\n";
}

return 1;
===========================
package A::B::C;

sub say_cpm {
  print "===========> C.pm\n";
}

return 1;

Adam314,
adding use lib '/usr/local/share/project'; worked.

How do I print $ENV{PERL5LIB}? How is it different from echo $PERL5LIB?

echo $PERL5LIB prints '/usr/local/share/project' - so, I am not sure why @INC does not contain it. Any ideas?

The $PERL5LIB, if in a perl script is a scalar variable named PERL5LIB.  If in a shell script, it is an environment variable named PERL5LIB.

In a perl script, $ENV{PERL5LIB} is the environment variable named PERL5LIB.  

When you type "echo $PERL5LIB" from a command line, this is giving you the environment variable as defined by your current environment, which is different from the web server environment.  When you have a perl script print "$ENV{PERL5LIB}", this is displaying the value of the PERL5LIB environment variable in perl's environment, which is wherever it's being run (either the command line, or by the webserver).  My guess is the environment variable is not being setup in the web server environment.

Adam314,
Yes, you are right - I set PERL5LIB in my & root's bash profile. I am assuming I need to set in web server environment using SetEnv, right?