应用程序窗口应在应用程序启动结束时具有根视图控制器（Iphone App）

我试图为我的课程制作一个Iphone应用程序，我得到错误

2015-06-26 00:41:31.721 My Movies[3313:6954045] Application windows are expected to have a root view controller at the end of application launch 

我目前正在运行Xcode 6.3.2（6D2105）

这是我的AppDelegate.m完成启动选项部分的样子

 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { self.window = [[UIWindow alloc] initWithFrame: [[UIScreen mainScreen] bounds]]; // Override point for customization after application launch. self.window.backgroundColor = [UIColor blackColor]; // Create Film TableView and add it to Navigation Controller, then add Nav'Controller to Window FilmTableTableViewController *vc = [[FilmTableTableViewController alloc] initWithStyle:UITableViewStylePlain]; navController = [[UINavigationController alloc] initWithRootViewController:vc]; [[self window] addSubview:[navController view]]; [self.window makeKeyAndVisible]; return YES; 

Answer 1

不要将navcontroller添加为子视图。 替换为

 // [[self window] addSubview:[navController view]]; [self.window setRootViewController:navController];