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pacman this morning reported the following:

WARNING: '/usr/lib/perl5/5.28' contains data from at least 4 packages which will NOT be used by the installed perl interpreter. -> Run the following command to get a list of affected packages: pacman -Qqo '/usr/lib/perl5/5.28'

That command lists a few directories. I managed to find out which modules these are using cpan -l, but cpanm refuses to uninstall any of them. For example:

! Test::CleanNamespaces is not found in the following directories and can't be uninstalled.

/usr/lib/perl5/5.30/site_perl /usr/share/perl5/site_perl

How do I remove these packages?

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  • 5.28 != 5.30. It seems like you installed a new version of Perl, leaving the modules of the old version behind. Commented Jul 7, 2019 at 22:04
  • @choroba Yes, that's what happens when updating :) If there is a sensible (as in, automatable) way of dealing with this before upgrading that would be handy as well. Commented Jul 7, 2019 at 22:51
  • If you don't use 5.28 anymore, just remove all its directories. Commented Jul 8, 2019 at 7:26
  • Do you want to make that an answer? It answers my question very nicely :) Commented Jul 8, 2019 at 9:00

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5.28 != 5.30. It seems like you installed a new version of Perl, leaving the modules of the old version behind. If you don't use 5.28 anymore, just remove all its directories.

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