ruby - Getting error with compass on mac osx yosimete -


i installed ruby through terminal , version 2.2.2 , install compass on mac create folder in www folder , through terminal write --compass init got succesffully folder type compass watch in command done. create main.scss , here try import 

@import : "compass";

then found error

/usr/local/bin/scss --no-cache --update main.scss:main.css error main.scss  (line 1: file import not found or unreadable: compass. load paths: )  process finished exit code 1

also in config.rb got line

require 'compass/import-once/activate'

and says no file found load


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