How to fix unrecognized selector issue in AdMob implementation?

Question

I have following problem:

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

I have linked all required frameworks.

Answer 1

I was missing -ObjC flag in Other Linker flags

Go to Project settings > Build Settings And set -ObjC in Other Linker Flags.