AdMob crashes with [GADObjectPrivate changeState:]: unrecognized selector

Question

I have installed the AdMob SDK 6.2.0 (Xcode 4.5 (4G182) and I am testing on an iPhone 4S and the simulator). I followed the tutorial and just want to get AdMob showing a ban

Answer 1

You need to add -ObjC to the Other Linker Flags of your application target's build setting:

1. Click the blue top-level project icon in XCode
2. Choose your target and go to Build Settings
3. Under Other Linker Flags add -ObjC for both Release and Debug

Source: https://developers.google.com/mobile-ads-sdk/docs/admob/mediation#ios-linker

Also be sure to do a clean and rebuild