Something very odd just happened. I fired up a script that I used just a few weeks ago. It calls mods: 
use feature ':5.10';
use URL::Encode qw(url_encode);
use Storable qw(nstore retrieve);
use Date::Manip;
use LWP::UserAgent;
use Math::Round qw(round);
use JSON::XS;

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When I run the script it says Can't locate URL/Encode.pm in @INC (you may need to install the URL::Encode module). If I comment-out the second line it throws the same error for Date::Manip. I run cpan -l and there they are!

It's not that the env variable $PATH got screwed up, because if I comment-out Date::Manip too it finds the other mods. This has me scratching my head. What could explain it?

Update

I found that if I run it from the command like so perl program.pl it finds the mods. But if I run it like so program.pl it doesn't. So I'm guessing must be something wrong with the file association to *.pl. I wonder how to fix that.

In reply to Interpreter can't find known installed mods (w10) by cormanaz

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