Installing Compass (Following the Compass Primer)

Question

I am currently following the Compass Primer

I've followed all the steps for installation on Ubuntu 8.10, and when I try to run it, to ensure that it's installed correctly, it gives me a big mess of errors:

 sudo /var/lib/gems/1.8/bin/compass
 /var/lib/gems/1.8/gems/chriseppstein-compass-0.3.8/lib/compass/commands
 /install_rails.rb:5: uninitialized constant Compass::Commands::CreateProject (NameError)
 from /usr/lib/ruby/1.8/rubygems/custom_require.rb:27:in `gem_original_require'
 from /usr/lib/ruby/1.8/rubygems/custom_require.rb:27:in `require'
 from /var/lib/gems/1.8/gems/chriseppstein-compass-0.3.8/lib/compass/exec.rb:181
 from /var/lib/gems/1.8/gems/chriseppstein-compass-0.3.8/lib/compass/exec.rb:180:in `each'
 from /var/lib/gems/1.8/gems/chriseppstein-compass-0.3.8/lib/compass/exec.rb:180
 from /usr/lib/ruby/1.8/rubygems/custom_require.rb:27:in `gem_original_require'
 from /usr/lib/ruby/1.8/rubygems/custom_require.rb:27:in `require'
 from /var/lib/gems/1.8/gems/chriseppstein-compass-0.3.8/bin/compass:5
 from /var/lib/gems/1.8/bin/compass:19:in `load'
 from /var/lib/gems/1.8/bin/compass:19

As I stated in my previous question, I'm pretty new to Ruby so I was wondering if anybody knew how I could fix this error.

Answer 1

According to the Compass homepage, this kind of error can occur if you don't have the latest version of Haml installed. Do you?

Answer 2

As of May 11, 2009, the documented procedure:

git clone git://github.com/nex3/haml.git
cd haml
rake install

Did not properly satisfy the haml-edge requirement needed to install compass. Instead, I needed to download the latest haml-edge gem directly from Haml's RubyForge page.

gem install haml-edge-*.gem