title: Illegal override of FlexModuleFactory in mx.core.FlexModuleFactory
body: <p>I have a Flex 4.5.1 application which loads another swf file (as a module which was written and compiled in Flex 3.2 SDK). </p>
  
  <p>I get the illegal override error (see title) the moment the 3.2 swf file is loaded.</p>
  
  <p>Is this even allowed or do modules loaded have to be compiled with the same version?</p>
  
  <p>If so, can you please explain why? </p>