Setting up a existing Project with Sass

Install sass and compass if not installed

gem install sass
gem install compass

Config Rb file

require 'susy'
require 'compass/import-once/activate'

http_path = "/" 
css_dir = "css" 
sass_dir = "scss" 
images_dir = "images" 
javascripts_dir = "js" 
output_style = :expanded 
relative_assets = true 
line_comments = true