为什么Xcode无法加载我的NIB

Question

在XCode中运行程序时，出现以下错误：

Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Could not load NIB in bundle: 'NSBundle </Users/user/Library/Developer/CoreSimulator/Devices/646F9805-AC4E-40A8-BC62-75B92339DCDC/data/Containers/Bundle/Application/D6C27367-F61B-4CAC-BB9E-1D48227CE629/WhatsNap.app> (loaded)' with name 'DisplayWarningViewController''

我正在运行以下代码行，并在最后一行获取异常。 我不确定为什么会这样。 关于此主题的其他答案表明是否可能未连接nib文件？

DisplayWarningViewController* DWVC = [[DisplayWarningViewController alloc]initWithNibName:@"DisplayWarningViewController" bundle:nil];
DWVC.delegate = self;
[self presentViewController:DWVC animated:NO completion:nil];

Answer 1

看起来您在情节提要中定义了视图控制器！ 在这种情况下，您应该

UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];

DisplayWarningViewController *displayWarningVC = (DisplayWarningViewController *)[storyboard instantiateViewControllerWithIdentifier:@"DisplayWarningViewController"]