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How to recover from interrupted CPAN module installation?

For some reason, a couple of files were created but not written to, or truncated. These can be easily identified in the full installation log as those modules with an undef version number:

Checking dependencies from MYMETA.json ...
Checking if you have Task::Weaken 0 ... Yes (undef)
Checking if you have Devel::GlobalDestruction 0 ... Yes (undef)

Reinstalling the modules Task::Weaken, and Devel::GlobalDestruction should do the trick.

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