Installing some gem and you got this error?
I was trying to install Devise:
Using devise (2.1.2) from https://github.com/plataformatec/devise.git (at master)
ArgumentError: invalid byte sequence in US-ASCII
An error occured while installing devise (2.1.2), and Bundler cannot continue.
Make sure that `gem install devise -v ‘2.1.2’` succeeds before bundling.