I'm on Windows 8 and I tried installing sass and compass and when I tried "compass watch" on an existing project which has an "@import "compass/css3";, I got an error: File to import not found or unreadable: compass/css3
The solution is to install rails-compass
After that "compass watch" now worked.
The solution is to install rails-compass
gem install compass-rails
After that "compass watch" now worked.