I have imported a Flex 2 project into Flash Builder 4 that gives me the error: "Unable to locate specified base class 'mx.core.Application' for component class 'ExPetition'." when I try to Build it. ExPetition is the name of the project.
I can't figure out why this is happening because I imported two other Flex 2 projects into Flash Builder just fine. I was using ColdFusion 8 with Flex 2 before I got my new computer and I am using ColdFusion 9 with Flash Builder 4 now. But I changed the Flex Compiler and Flex Server settings for all three projects after importing them. For two of them I was able to Build Project and run them and they worked fine. So why am I getting this error importing this other project? Can anyone help?