Recent SDK requires setting rootViewController

Author: Nikolay Morev

tests-ios/AppDelegate.mm

@@ -23,6 +23,7 @@ - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(
     self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
     // Override point for customization after application launch.
     self.window.backgroundColor = [UIColor whiteColor];
+    self.window.rootViewController = [[UIViewController alloc] init];
     [self.window makeKeyAndVisible];
 
     testAll();