in reply to Problem installing missing modules with CPAN::Shell

Unless you've done so I'd start with trivial checks:

Verify CPAN::Debug is accessible when you do 
/path/to/perl -e 'use CPAN::Debug'

[download]
If more than one version of Perl is installed, use full path for perl command to make sure you're installing the module for the correct version.

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Re^2: Problem installing missing modules with CPAN::Shell
by sotona (Scribe) on Feb 11, 2015 at 08:53 UTC
    I have only one perl version installed and when I do /usr/bin/perl -e "use CPAN::Debug" or /usr/bin/perl -MCPAN::Debug -e "print 1" everything is ok
    Sapienti sat.
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Re^2: Problem installing missing modules with CPAN::Shell
by sotona (Scribe) on Feb 12, 2015 at 17:18 UTC
    Well, I tried literally everything, including complete de- and re-installation of perl (and "rm -rf" of leftovers) but it did not help.

    Looks like a bug?

    Sapienti sat.
[reply]

      Well, I tried literally everything, including complete de- and re-installation of perl (and "rm -rf" of leftovers) but it did not help.

      Looks like a bug?

      No. Looks like user error.

      Try this, get https://cpan.metacpan.org/authors/id/A/AN/ANDK/CPAN-2.05.tar.gz, untar it and install it

      Then try running ... and if it fails post the full error message including output of perl -V

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        [rum-mad-adtsrv-01] # perl -v

This is perl 5, version 20, subversion 1 (v5.20.1) built for x86_64-li
+nux

Copyright 1987-2014, Larry Wall

Perl may be copied only under the terms of either the Artistic License
+ or the
GNU General Public License, which may be found in the Perl 5 source ki
+t.

Complete documentation for Perl, including FAQ lists, should be found 
+on
this system using "man perl" or "perldoc perl".  If you have access to
+ the
Internet, point your browser at http://www.perl.org/, the Perl Home Pa
+ge.


[rum-mad-adtsrv-01] # ./cpan.pl
Can't locate package CPAN::Debug for @CPAN::Shell::ISA at ./cpan.pl li
+ne 7.
Can't call method "exists" on an undefined value at /usr/lib/perl5/5.2
+0.1/CPAN/Shell.pm line 1471.

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        test script is: 

        #!/usr/bin/perl

use strict;
use warnings;

use CPAN::Shell;

CPAN::Shell->install('Image::Size');

        [download]
        Sapienti sat.
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