title: Compass – Undefined mixin display-box
body: <p>I'm trying to do this</p>
  
  <pre><code>@import "compass/css3";
  .example {
     @include display-box;
  }
  </code></pre>
  
  <p>Basicaly just use mixin from <code>compass/css3</code> as described here <a href="http://compass-style.org/reference/compass/css3/box/" rel="nofollow">http://compass-style.org/reference/compass/css3/box/</a></p>
  
  <p>However it gives me this error <code>Syntax error: Undefined mixin 'display-box'</code></p>
  
  <p>My Compass version is <code>Compass 1.0.0.rc.1 (Polaris)</code></p>
  
  <p>What am I doing wrong? Thanks</p>