Re: Symbol lookup error for my ~/perl5/lib/perl5

TL;DR: mv ~/perl5 ~/perl5.bak should restore scripts such as cpan that depend on List::Util but get the version compiled for older version of Perl from ~/perl5.

This has happened because Debian Jessie has Perl v5.20, Debian Stretch has v5.24, both Perls expect their modules to be in ~/perl5 (probably via local::lib) but are binary incompatible. It is likely that you have the compatible version of List::Util (and other cpan dependencies) installed somewhere in /usr, but modules installed via local::lib take precedence and manage to crash the interpreter before it can use right one.

One your Perl installation works, you can visit ~/perl5.bak to see which modules you would need to install again, for the new version of Perl.

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Re^2: Symbol lookup error for my ~/perl5/lib/perl5 by Lady_Aleena (Priest) on Jun 06, 2019 at 16:37 UTC
Will `cpan` rebuild `~/perl5` when I go to reinstall the modules or do I need to recreate some of the directory structure? *No matter how hysterical I get, my problems are not time sensitive. So, relax, have a cookie, and a very nice day!* Lady Aleena	[reply] [d/l] [select]
Re^3: Symbol lookup error for my ~/perl5/lib/perl5 by karlgoethebier (Abbot) on Jun 07, 2019 at 11:43 UTC
Splendid advice was already given by some fellow monks. Just a little addendum: For the future i would recommend that you make it so. Didn‘t I mention this already 😎 ? Best regards, Karl «The Crux of the Biscuit is the Apostrophe» `perl -MCrypt::CBC -E 'say Crypt::CBC->new(-key=>'kgb',-cipher=>"Blowfish")->decrypt_hex($ENV{KARL});'`Help	[reply] [d/l]
Re^3: Symbol lookup error for my ~/perl5/lib/perl5 by Anonymous Monk on Jun 06, 2019 at 20:22 UTC
I think that `cpan` should be able to rebuild everything by itself. At most, `mkdir ~/perl5` might be needed but probably isn't.	[reply] [d/l] [select]


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