I'm trying to run SimpleExample of Yahoo's Flash AS3 examples to run but I can't seem to make it work.

I've properly downloaded as3's core lib and pasted it inside the project. Then I pasted YOSSimple.fla in the root dir then I ran it. But I still keep getting the ff errors.

Definition com.yahoo.social.data:Profile could not be found
Definition com.yahoo.social.data:Profile could not be found
Type was not found or was not a compile-time constraint: Profile
etc