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PATH is not properly set up
ruby-2.1.2 is not installed. To install do: 'rvm install ruby-2.1.2' Carrows-MacBook-Air:onemonthsimple Carrow$ rvm install ruby-2.1.2 Warning! PATH is not properly set up, $GEM_HOME is not set, usually this is caused by shell initialization files - check them for 'PATH=...' entries, it might also help to re-add RVM to your dotfiles: 'rvm get stable --auto-dotfiles', to fix temporarily in this shell session run: 'rvm use ruby-2.2.1'.
This sounds like an RVM issue? Could you copy/paste the full error message as it's displayed in the terminal?