Admob errors with Spritekit

Question

Trying to integrate Admob with Spritekit.

I am getting an uncaught exception

"Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[GADSlot state]: unrecognized selector sent to instance 0x17ef1440'"

Answer 1

Thanks to this link.

How to fix unrecognized selector issue in AdMob implementation?

I was missing the -objC flag.

Annoying!! (Wasted my full day!)