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

i got this problems too. i got my project run in xcode4.2.1. i've read all comments up there, but no one is cool for me. after a while, i find that i commented a piece of code.

//self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];

then i uncommented it. everything is ok for me. hope this would helpful for you guys.