The problem is that there is no AppDelegate file. That is usually where the root view controller is set
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
// Override point for customization after application launch.
self.viewController = [[[ViewController alloc] initWithNibName:@"ViewController" bundle:nil] autorelease];
// set root view controller
self.window.rootViewController = self.viewController;
[self.window makeKeyAndVisible];
return YES;
}