How to install compass on Windows 7

1. Install ruby for Windows: http://rubyinstaller.org/downloads/
2. Use "Start Command Prompt with Ruby" in windows search.
3. Type:

   gem install sass 

4. Open config.rb file and install all the "required" apps you see there (the ones you can't find just comment them out)
5. Install compass gem install compass
6. Go to project file (right where you have the config.rb file)
7. to compile do:

   compass compile

That's it!

source: http://stackoverflow.com/questions/15511874/file-to-import-not-found-or-unreadable-compass