Susy Undefined mixin 'span-columns' -

Susy Undefined mixin 'span-columns' -

keep getting error. undefined mixin 'span-columns'

here gem list:

*** local gems *** chunky_png (1.3.1) compass (0.12.6) compass-susy-plugin (0.9) fssm (0.2.10) sass (3.2.19)

my config.rb file:

require 'susy' # require additional compass plugins here. # set root of project when deployed: http_path = "/" css_dir = "." sass_dir = "." images_dir = "images" javascripts_dir = "js"

i used have , running until tried upgrade susy 2. never latest vers of compass installed w/o errors. chose install plugin susy instead of susy itself. totally screwed ruby, rvm etc etc. reinstalled os. missing here? have install susy 2 , or update compass-susy-plugin? if how update compass-susy-plugin help!!!

susy 2 requires sass 3.3 , compass --pre. actually, has been mentioned quite few times. find info in docs. utilize bundler ensure gems correct.

susy-compass