title: Imported style sheets're not checked in direct input and file uploads mode (level 0)
body: <p>I have just done  <code>@import url('../image.css') screen;</code> in another CSS file. However, I have got <code>imported style sheets are not checked in direct input and file uploads mode (level 0)</code>. I don't understand the reason why this warning is emitted by Aptana. What should I do so that the problem will be solved?</p>