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

Just a follow up ... on different solution...

it may be that you are on a mac and rails cannot find the right compiler for c headers.

just install xcode from apps store / homebrew or go to terminal ...

$ xcode-select --install

complete the installation and agree on the licensing etc, then ...

$ sudo gem install rails