I tried to install Rails but I kept getting the error
Rails is not currently installed on this system.
I couldn’t figure it out, until I did the following steps:
brew install gpg2
gpg --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB
Then I ran
curl -sSL https://get.rvm.io | bash -s stable --rails
This installs the latest stable version of Ruby and Rails
Then I ran (Bash / Zsh)
rails command worked fine.
On Fish, instead of the above command I had to run:
curl -L --create-dirs -o ~/.config/fish/functions/rvm.fish https://raw.github.com/lunks/fish-nuggets/master/functions/rvm.fish
echo "rvm default" >> ~/.config/fish/config.fish
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