title: Compass Flexbox
body: <p>I'm trying to test this flexbox layout model in compass.
  I run into problem, when I copy entire example to my localhost: <a href="http://compass-style.org/examples/compass/css3/flexbox/" rel="nofollow">http://compass-style.org/examples/compass/css3/flexbox/</a></p>
  
  <p>I get following error:</p>
  
  <pre><code>error: assets/sass/main.scss (Line 94 of /Users/xyz/.rvm/gems/ruby-2.0.0-p481@global/gems/compass-core-1.0.1/stylesheets/compass/css3/_flexbox.scss: Mixin flexbox takes 0 arguments but 1 was passed.)
  </code></pre>
  
  <p>To compile my scss files I use grunt-contrib-compass</p>
  
  <p>ruby: 2.0.0p481 (2014-05-08 revision 45883) [x86_64-darwin13.1.0]</p>
  
  <p>compass: Compass 1.0.1 (Polaris)</p>
  
  <p>Sass 3.4.3 (Selective Steve)</p>
  
  <p>grunt-contrib-compass: "~0.9.1"</p>
  
  <p>Same error I get when I run 'Compass watch'.
  Any ideas why is this happening?</p>