Error when installing Ruby on Rails: “Failed to build gem native extension”

Question

I\'m running Crunchbang 11 (Debian-based).

I\'m trying to install Ruby on Rails, like this:

gem install rails --version 4.0.0

I ge

Answer 1

Rails 4.0 needs RubyGem version 2.0.3, Just update your system by using following command

gem update --system 2.0.3