How to change Rails version on Mac?

Question

I have Snow Leopard with Rails 2.3.5 installed along with other versions (2.2.2 and 1.2.6). I would like to use 2.2.2, since the web server I want to deploy uses the Rails version 2.2.x. I tried removing Rails 2.3.5, but getting this error:

ERROR:  While executing gem ... (Gem::InstallError)
    cannot uninstall, check `gem list -d rails`

Is there another way to install a version of Rails for one of the other installed versions of Rails?

Answer 1

You really should take a look at RVM (Ruby Version Manager), this is awesome!

• https://rvm.io
• http://teachmetocode.com/screencasts/rvm-ruby-version-manager/

Greetings

Denis

Answer 2

-. , , .

rails _2.2.2_ app_name