Q:

Swift: GM Xcode 6.1 And AFNetworking AFJSONResponseSerializer

Before installing GM Xcode 6.1 the below code is working fine.  However after installing Xcode 6.1, I'm getting error:

I tried this, and the error was really nice. 

Any idea?  I haven't read the release note yet. 

A:

Just a guess, but try cleaning the project or wiping your DerivedData directory. 
let x = AFJSONResponseSerializer()

Works fine for me in Xcode 6.1 GM. 
Is AFJSONResponseSerializer in the bridging header btw?