iOS Touch API's override bug in Fire 8.1.85.1801, built 07-14-2015

override func touchesBegan(touches: Set<NSObject>, withEvent event: UIEvent)  // Error: no method to override
override func touchesCancelled(touches: Set<NSObject>!, withEvent event: UIEvent!)  // Error: no method to override
override func touchesEnded(touches: Set<NSObject>, withEvent event: UIEvent)  // Error: no method to override

Error:
duplicate-error E385: The method found in the base class to override
"touchesBegan(NSSet!, withEvent UIEvent!)" does not match the signature
"touchesBegan(Set, withEvent UIEvent)"

Try using the signature as provided in the error message. NSSer, non-generic and with !.

Ya I understood from another post that when I am working with silver swift, I have to consult the apple Obj-C swift docs.

Thanks!!