run crash

[mountainKingG]

AwesomeMenu[15456:271322] *** Assertion failure in -[UIApplication _runWithMainScene:transitionContext:completion:], /BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit_Sim/UIKit-3512.60.7/UIApplication.m:3401 2016-07-19 20:30:52.682 AwesomeMenu[15456:271322] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Application windows are expected to have a root view controller at the end of application launch'

[mobiletech2100]

(BOOL)application:(UIApplication )application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; self.window.backgroundColor = [UIColor whiteColor]; ............. ............. ............. UIViewController rootCtr = [[UIViewController alloc] init]; UINavigationController nav = [[UINavigationController alloc] initWithRootViewController:rootCtr]; [rootCtr.view addSubview:menu]; [self.window setRootViewController:nav]; // [self.window addSubview:menu]; [self.window makeKeyAndVisible]; return YES; }