Today I installed a new gem. When I tried to run the command provided by the gem, I got an error zsh: command not found: wheneverize. I realized I forgot to run rbenv rehash. So I ran it and this is what I got rbenv: cannot rehash: /Users/shot/.rbenv/shims/.rbenv-shim exists. I searched about it and found a Github issues link that had a good discussion on why this happens. The file .rbenv-shim get