Falling back to loading access token from NSUserDefaults because of simulator bug

Question

Xcode log show the above error while running in Xcode 8.1, ios 10.1. Is there any problem or should I ignore and continue?

Answer 1

I have this problem, too. It seems to be caused by an the Facebook SDK's Login Access Token. It caches just fine on a real device, but not on the simulators. Try running the app from a physical device.