This is a very old problem that has become unbearable so I'm hoping someone out there has a solution:
I use SWCs I have generated in Adobe Flash Professional in my Flash Build projects. The problem is when these are updated flash builder absolutely refuses to recognize the changes to them.
I have tried "refresh", "clean project" I've restarted flash builder, and it still shows and runs with the old content. I verified that the swc file itself has the new content in it, the error 100% lies within Flash Builder.
Edit: This is very far from an acceptable solution but for posterity's sake: The only way to get your code to recognize the changes is to go to: 'Project Settings' -> 'ActionScript Build Path' -> 'Library Path' then remove the changed SWCs close out these menus, then navigate back to there and readd them. Sometimes this doesn't even work and you must also restart Flash Builder