Why won't Rails 4 uninstall?

Question

After uninstalling Rails 4(RC1) I still get Rails 4 apps generated with rails new.

➲ rails -v
Rails 4.0.0.rc1
➲ which rails
/Users/brandon/.rvm/gems/ruby-1.9.3-p392/bin/rails
➲ gem uninstall rails

Select gem to uninstall:
 1. rails-3.2.13
 2. rails-3.2.3
 3. All versions
> 

What's the cleanest way to fix this?

Answer 1

It is quite easy.

gem uninstall rails -v=4.0.0.rc1
gem uninstall railties
gem install rails -v 3.2.13
gem update --system
rails -v

By using commands above I was able to install older version of rails as needed :)

Answer 2

Rails does not come as an all-in-one package. You have a base Rails gem, plus it's many dependencies:

• Action Mailer
• Action Pack
• Active Record
• Active Resource
• Active Support
• Bundler
• Railties <---- (contains generators)
• Sprockets adapter for Rails

To get rid of your Rails 4 installation as a whole, you must remove all of these gems.

The easiest way to do this is to delete your entire gem folder, then reinstall whatever you need.