X clipboard handling requires Capture-Tiny, not just Clipboard.
Created attachment 454910 [details, diff] Added dependency for X clipboard handling
Confirmed. I hit the same bug. The error message is: kpcli:/> xp Example/entry Error: xp requires the Clipboard and Capture::Tiny modules: - http://search.cpan.org/~king/Clipboard/ - http://search.cpan.org/~dagolden/Capture-Tiny/ Using kpcli version 3.0. After manually emerging dev-perl/Capture-Tiny kpcli works as expected.
Fixed in version 3.1