Applications are expected to have a root view controller at the end of application launch

Question

I get the following error in my console:

Applications are expected to have a root view controller at the end of application launch

Answer 1

If you use MTStatusBarOverlay, then you'll get this error.

MTStatusBarOverlay creates an additional window ([[UIApplication sharedApplication] windows) which doesn't have a root controller.

This doesn't seem to cause a problem.