Error when using overcommit and Github Desktop

Question

I am using overcommit gem (https://github.com/brigade/overcommit) in my project, when I use Github Desktop for osx I get these errors:

This repository contains hooks installed by Overcommit, but the overcommit gem is not installed. Install it with gem install overcommit. (1)

The gem is installed, it works in terminal. I guess it's because I use rvm and Github Desktop doesn't know about rvm. Anybody knows how to fix this?

Answer 1

Ok finally got it to work! Combined the answer from @michelegera with comment from @rewritten

Step 1:

sudo su -
gem install bundler
gem install overcommit
gem install rubocop

Step 2: added command: ['bundle', 'exec', 'rubocop'] to .overcommit.yml

Thanks for the help!