title: I added class directory via Flex Build Path/Source Path, and now 'building workspace' takes forever
body: <p>I am coming from flash to flashbuilder.</p>
  
  <p>I have a directory, AS3_classes_dir, on my computer that stores all of my classes, including my greensock and papervision packages. In every <em>flash</em> app that I make I include that directory in the Source Path, so that I can import whatever I may need. Compiling in flash (using ctrl/enter) takes very little time; only the classes that are specifically imported are compiled.</p>
  
  <p>So today I did that in <em>flashbuilder</em>, included AS3_classes_dir via Flex Build Path/Source Path ... but now the compile time are a couple of minutes, even though I am not even importing ANY of the classes from within.</p>
  
  <p>I do not have any other projects open.</p>