Jeri has asked for the wisdom of the Perl Monks concerning the following question:

Hi Monks! My perl module AmosLib.pm cannot be found, but it is definitely installed on my computer. Here I verify it. 
jdilts@jdilts-VirtualBox:~$ sudo find ./ -name "AmosLib.*"
[sudo] password for jdilts: 
./.local/share/Trash/files/bin/amos-3.1.0-rc1/src/PerlModules/AmosLib.
+pm
./.local/share/Trash/files/src/PerlModules/AmosLib.pm

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The strange part is when I do a search in the GUI over my whole file system. It also finds two instances of AmosLib.pm, but not in the same location.
/usr/local/bin/amos-3.1.0-rc1/lib/AMOS
/usr/local/bin/amos-3.1.0-rc1/src/PerlModules

When I run my script I get this error. 
Can't locate AMOS/AmosLib.pm in @INC (@INC contains: /etc/perl /usr/lo
+cal/lib/perl/5.14.2 /usr/local/share/perl/5.14.2 /usr/lib/perl5 /usr/
+share/perl5 /usr/lib/perl/5.14 /usr/share/perl/5.14 /usr/local/lib/si
+te_perl .) at /usr/local/bin/amos-3.1.0-rc1/src/Converters/tarchive2a
+mos.pl line 5.
BEGIN failed--compilation aborted at /usr/local/bin/amos-3.1.0-rc1/src
+/Converters/tarchive2amos.pl line 5.

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It seems my program wants to find AmosLib.pm in the AMOS directory which was found by my GUI search and not by the terminal find command. So, I decided to do an export to that directory and I look at my PERL5LIB path. 
jdilts@jdilts-VirtualBox:~$ export PERL5LIB=/usr/local/bin/amos-3.1.0-
+rc1/lib/AMOS:$PERL5LIB
jdilts@jdilts-VirtualBox:~$echo $PERL5LIB
/usr/local/bin/amos-3.1.0-rc1/lib/AMOS:/usr/local/bin/amos-3.1.0-rc1/s
+rc/PerlModules:/home/jdilts/perl5/lib/perl5/i686-linux-gnu-thread-mul
+ti-64int:/home/jdilts/perl5/lib/perl5

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Okay good. Now my script should work, but no. I get the same error and don't see the directory I inserted into the PERL5LIB. 
Can't locate AMOS/AmosLib.pm in @INC (@INC contains: /etc/perl /usr/lo
+cal/lib/perl/5.14.2 /usr/local/share/perl/5.14.2 /usr/lib/perl5 /usr/
+share/perl5 /usr/lib/perl/5.14 /usr/share/perl/5.14 /usr/local/lib/si
+te_perl .) at /usr/local/bin/amos-3.1.0-rc1/src/Converters/tarchive2a
+mos.pl line 5.
BEGIN failed--compilation aborted at /usr/local/bin/amos-3.1.0-rc1/src
+/Converters/tarchive2amos.pl line

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I'm not sure what I'm doing wrong. All help is greatly appreciated! Thanks!

Replies are listed 'Best First'.
Re: Can't locate AMOS/AmosLib.pm in @INC
by toolic (Bishop) on May 18, 2012 at 15:28 UTC
    If your AmosLib.pm file declares package AMOS::AmosLib;, then change: 
    export PERL5LIB=/usr/local/bin/amos-3.1.0-rc1/lib/AMOS:$PERL5LIB

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    to: 

    export PERL5LIB=/usr/local/bin/amos-3.1.0-rc1/lib:$PERL5LIB

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    See also: Simple Module Tutorial and require

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      Okay. I checked the file. It was AMOS::AmosLib like you suspected. So I changed the export and got the same error with no change. I also tried putting the .pm in the /etc/perl directory.
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        Create a new script with just these lines in it: 
        #!/usr/bin/env perl
use Data::Dumper;
print Dumper(\@INC);
print "$_\n" for glob '/usr/local/bin/amos-3.1.0-rc1/lib'

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        Run it and post the results in readmore tags.
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        I also tried putting the .pm in the /etc/perl directory.

        Did you put AmosLib.pm in /etc/perl/AMOS/?

        Improve your skills with Modern Perl: the free book.

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        Honestly, I'm not trying to be a burden. I just need to know how to get a path I want into @INC. Thanks!
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Re: Can't locate AMOS/AmosLib.pm in @INC
by runrig (Abbot) on May 18, 2012 at 18:56 UTC
    With PERL5LIB set, run perl -V. is there an AMOS directory in one of the directories listed in the @INC list at the end? Does that directory contain AmosLib.pm? Is the AMOS directory and the AmosLib.pm file readable by you? Does perldoc -m AMOS::AmosLib find the AmosLib.pm source?
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Re: Can't locate AMOS/AmosLib.pm in @INC
by Eliya (Vicar) on May 18, 2012 at 16:43 UTC
    ...and don't see the directory I inserted into the PERL5LIB

    Did you run the Perl script from the same shell where you exported PERL5LIB?

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      yes
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        Well, if this is true, your perl is broken :)  Or your script resets @INC.  Or your script runs in taint mode (-T).  Or you showed the wrong error message in your OP.

        Items in PERL5LIB should otherwise always appear in the reported @INC: 

        $ PERL5LIB=/foo/bar perl -MNot::Exist -e1
Can't locate Not/Exist.pm in @INC (@INC contains: /foo/bar /etc/perl /
+usr/local/lib/perl/5.14.2 /usr/local/share/perl/5.14.2 /usr/lib/perl5
+ /usr/share/perl5 /usr/lib/perl/5.14 /usr/share/perl/5.14 /usr/local/
+lib/site_perl .).
BEGIN failed--compilation aborted.

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        As you can see, /foo/bar has been added to @INC.

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