Adding newer Flex SDK to Flex Builder 3 - how?

I have a Flex Builder 3.0.2. It was shipped with Flex SDK 2.0.1 and 3.2. I would like to add the new Flex SDK 3.5. I followed the documentation: http://livedocs.adobe.com/flex/3/html/help.html?content=build_6.html#162812: - extracted SDK 3.5 - added into my SDK list - set to default - restart Flex Builder - clean project

But it's just not working. There are many functions from the documentation I can't use still开发者_JAVA百科 (but should be available with SDK 3.5). How can I use SDK 3.5?

Thanks in advance, Peter

Check under project properties -> Flex Compiler, that you're not compiling against a specific SDK, instead of the default one you've set.

Also you might need to target Flash Player 10, in which case you might want to look at how to do that.