Gem::LoadError when trying to run the 'pocket-ruby' gem

Hey everyone,

I recently posted a question on stack overflow on this but figured I
give it a shot in here since I havent had a response yet. Im trying to
the ‘pocket-ruby’ gem so I can fiddle around with what its got and I am
getting an error I have no idea how to handle. Here is a link to stack

I messed around with the dependency versions but had no success.