My component set was correct at MX+Spark I figured it out - mainly from you pointing me to the mx.swc in the frameworks directory, although I still have no idea why it works in Adobe 4.6 and not in Apache 1.16.
I added the frameworks\libs\mx directory to my library path and then Flash Builder could see them. So I have one entry in the library pointing to the SDK, and a second with a full file descriptor pointing around the SDK to the sub-directory. If I change the SDK, I'm going to have to change this link as well. Previously I think that sub-directories may have been included automatically in the search. Thanks for your help, awesome job with the port. -- Sent from: http://apache-flex-users.2333346.n4.nabble.com/