Since changing to the AIR 3.6 I'm getting many errors such as:
Could not resolve <s:Sequence> to a component implementation.
If I switch to the built in Flex SDK 4.6.0 it works fine. I'm using Flash Builder 4.6.
UPDATE
I think that this is because there is a new compiler for ActionScript and that new compiler is included with the SDK and that is causing problems for Flex projects. I read this on the AIR SDK download page (which I did not notice before):
Note : Flex users will need to download the original AIR SDK without the new compiler.