title: "You must compile individual stylesheets from the project directory" error with compass project
body: <p>I've installed Zurb Foundation sass into an expressionengine project but i'm getting this when saving the app.scss file:</p>
  
  <blockquote>
    <p>Compass was unable to compile one or more files in the project: </p>
    
    <p>You must compile individual stylesheets from the project directory.</p>
  </blockquote>
  
  <p>All my paths are correct as they are the same as in another project that works fine.</p>
  
  <p>Any idea what triggers that error so i can track down the issue?</p>