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

Run the following command:

sudo apt-get install ruby-dev zlib1g-dev liblzma-dev

Then,

sudo gem install rails