I've moved the common base classes for the framework to the actionscript folder in the root of the project. Add this folder to your class path in both Flash and Flex projects.

Note that your document class in Flash projects should extend org.gaeswf.flash.BaseApplication and your Application MXML in Flex should be of type org.gaeswf.flex.BaseApplication (if none of this makes any sense to you, see my Flex 3 Code Behind Quick Start.)

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