“由于未捕获的异常而终止应用程序" ..找不到主窗口，该窗口不再存在 [英] 'Terminating app due to uncaught exception'.. it couldn't find MainWindow, which no longer exists

问题描述

我不久前删除了所有.xib文件，最近又更改了标识符.现在它开始给我这个错误:

I deleted all my .xib files a while ago, and recently changed my identifier. Now its started giving me this error:

由于未捕获而终止应用程序例外'NSInternalInconsistencyException'，原因:无法在捆绑包中加载NIB:'NSBundle(已加载)'，名称为'MainWindow'

Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Could not load NIB in bundle: 'NSBundle (loaded)' with name 'MainWindow''

MainWindow不久前已被删除，并且从部署信息中删除MainWindow意味着我只得到了黑屏.这是我在我的应用程序委托中拥有的代码:

MainWindow was deleted a while ago, and removing MainWindow from deployment info means that I'm just given a black screen. This is the code i have in my app delegate:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {    

    [application setStatusBarStyle:UIStatusBarStyleBlackOpaque];
    [window addSubview:navigationController.view];
    [self.window makeKeyAndVisible];

    return YES;
}

我想念什么吗?我想我应该删除MainWindow，但是正如我所说，这只是给我一个黑屏.

Am i missing something? I presume i should remove MainWindow but as i say, this is just giving me a black screen.

推荐答案

由于在 Info.plist 中设置了 NSMainNibFile 值，因此出现此错误.它告诉操作系统在启动时打开该 NIB 文件.由于出于某种原因而放弃了 NIB ，因此您将不得不通过删除 NIB 文件来填补创建的漏洞.

You are getting this error because the NSMainNibFile value is set in your Info.plist. It tells the OS to open that NIB file at launch. Since you're doing away with NIBs for some reason, you will have to fill in the holes that you've created by deleting the NIB file.

1. 您必须从 Info.plist 中删除密钥.

2. 您必须在 main.m 中进行一些更改.通常， MainWindow.xib 包含有关您的应用程序委托的信息，但是现在您需要提供它.找到读取 int retVal = UIApplicationMain(argc，argv，nil，nil); 的行，并将其替换为 int retVal = UIApplicationMain(argc，argv，nil，@"yourDelegateClassName");

1. You've to delete the key from the Info.plist.

2. You have to make some changes in your main.m. Usually the MainWindow.xib contained the information about your application delegate but now you need to provide it. Find the line that reads int retVal = UIApplicationMain(argc, argv, nil, nil); and replace it with int retVal = UIApplicationMain(argc, argv, nil, @"yourDelegateClassName");

到目前为止，您已完成的操作将实例化应用程序委托，并且您的 application:didFinishLaunchingWithOptions:将被调用，但您的 window 尚未设置为 NIB 文件再次解决了该问题.这将适用于您所有的网点.不仅是您的窗口".

What you've done so far will instantiate the application delegate and your application:didFinishLaunchingWithOptions: will get called but your window isn't set yet as it was taken care of by the NIB file again. This will apply to all your outlets. Not only your `window.

您必须像这样在 application:didFinishLaunchingWithOptions:方法中添加一些内容，

You will have to make some additions to your application:didFinishLaunchingWithOptions: method like this,

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {    
    // Instantiate Window
    self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];

    // Instantiate Root view controller
    RootViewController * viewController = [[[RootViewController alloc] init] autorelease];

    // Instantiate navigation controller
    navigationController = [[UINavigationController alloc] initWithRootViewController:viewController];

    [application setStatusBarStyle:UIStatusBarStyleBlackOpaque];
    [window addSubview:navigationController.view];
    [self.window makeKeyAndVisible];

    return YES;
}

以上方法只是一个模板，必须根据您的要求进行修改.

The above method is just a template and must be modified to your requirement.

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