我这里有一个很奇怪的问题。
我的Mac Catalyst应用启动时崩溃，但AppDelegate.swift中出现以下异常：
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[__NSDictionaryM setObject:forKey:]: object cannot be nil (key: title)'
某些信息是该项目是从existing iOS / iPadOS应用程序移植的Mac Catalyst应用程序，并且它not使用SwiftUI，并且not使用多个场景。该异常发生在AppDelegate类中。
但是，调试器指向类声明的行，而不是我编写的任何代码，因此，我认为这是内部错误。
有趣的是，我已经研究了一下，并确定从我从AppDelegate中删除application(_:willFinishLaunchingWithOptions:)和application(_:didFinishLaunchingWithOptions:)方法的那一刻起，该应用程序就运行良好。甚至像这样的空声明：
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
return true
}
将导致应用程序崩溃，而根本不包括该方法将允许应用程序正常运行。
这里是堆栈跟踪：
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[__NSDictionaryM setObject:forKey:]: object cannot be nil (key: title)'
*** First throw call stack:
(
0 CoreFoundation 0x00007fff35ac5d07 __exceptionPreprocess + 250
1 libobjc.A.dylib 0x00007fff6e7ea5bf objc_exception_throw + 48
2 CoreFoundation 0x00007fff35b7463e -[__NSCFString characterAtIndex:].cold.1 + 0
3 CoreFoundation 0x00007fff35b7f19c -[__NSDictionaryM setObject:forKey:].cold.3 + 0
4 CoreFoundation 0x00007fff35a03459 -[__NSDictionaryM setObject:forKey:] + 976
5 UIKitCore 0x00007fff764748eb -[_UIMenuBarItem properties] + 99
6 UIKitMacHelper 0x00007fff66bf872a UINSNSMenuItemFromUINSMenuItem + 90
7 UIKitMacHelper 0x00007fff66bf8340 _insertUINSMenuItemsIntoNSMenu + 1135
8 UIKitMacHelper 0x00007fff66bf7da8 UINSNSMenuFromUINSMenu + 119
9 UIKitMacHelper 0x00007fff66bf7c49 -[UINSMenuController _createNSMenu:forContextMenu:] + 79
10 UIKitMacHelper 0x00007fff66bf7b09 -[UINSMenuController setMainMenuBar:] + 70
11 UIKitCore 0x00007fff764687d6 -[_UIMenuBarController _rebuildRootCommandGroup] + 229
12 UIKitCore 0x00007fff763113a2 -[UIApplication _handleDelegateCallbacksWithOptions:isSuspended:restoreState:] + 801
13 UIKitCore 0x00007fff76310a33 -[UIApplication _callInitializationDelegatesWithActions:forCanvas:payload:fromOriginatingProcess:] + 5775
14 UIKitCore 0x00007fff7630de2b -[UIApplication _runWithMainScene:transitionContext:completion:] + 1319
15 UIKitCore 0x00007fff7630d7fb -[_UISceneLifecycleMultiplexer completeApplicationLaunchWithFBSScene:transitionContext:] + 122
16 UIKitCore 0x00007fff76308a07 _UIScenePerformActionsWithLifecycleActionMask + 83
17 UIKitCore 0x00007fff7630cf45 __101-[_UISceneLifecycleMultiplexer _evalTransitionToSettings:fromSettings:forceExit:withTransitionStore:]_block_invoke + 198
18 UIKitCore 0x00007fff7630cd28 -[_UISceneLifecycleMultiplexer _performBlock:withApplicationOfDeactivationReasons:fromReasons:] + 467
19 UIKitCore 0x00007fff7630bf21 -[_UISceneLifecycleMultiplexer _evalTransitionToSettings:fromSettings:forceExit:withTransitionStore:] + 823
20 UIKitCore 0x00007fff7630bb42 -[_UISceneLifecycleMultiplexer uiScene:transitionedFromState:withTransitionContext:] + 350
21 UIKitCore 0x00007fff7678e853 __186-[_UIWindowSceneFBSSceneTransitionContextDrivenLifecycleSettingsDiffAction _performActionsForUIScene:withUpdatedFBSScene:settingsDiff:fromSettings:transitionContext:lifecycleActionType:]_block_invoke_2 + 178
22 UIKitCore 0x00007fff7630a0a3 +[BSAnimationSettings(UIKit) tryAnimatingWithSettings:actions:completion:] + 832
23 UIKitCore 0x00007fff763095f2 _UISceneSettingsDiffActionPerformChangesWithTransitionContext + 240
24 UIKitCore 0x00007fff763092bf __186-[_UIWindowSceneFBSSceneTransitionContextDrivenLifecycleSettingsDiffAction _performActionsForUIScene:withUpdatedFBSScene:settingsDiff:fromSettings:transitionContext:lifecycleActionType:]_block_invoke + 153
25 UIKitCore 0x00007fff7630920c _UISceneSettingsDiffActionPerformActionsWithDelayForTransitionContext + 84
26 UIKitCore 0x00007fff76308f4a -[_UIWindowSceneFBSSceneTransitionContextDrivenLifecycleSettingsDiffAction _performActionsForUIScene:withUpdatedFBSScene:settingsDiff:fromSettings:transitionContext:lifecycleActionType:] + 379
27 UIKitCore 0x00007fff763083cb __64-[UIScene scene:didUpdateWithDiff:transitionContext:completion:]_block_invoke + 685
28 UIKitCore 0x00007fff76307aef -[UIScene _emitSceneSettingsUpdateResponseForCompletion:afterSceneUpdateWork:] + 262
29 UIKitCore 0x00007fff763079a4 -[UIScene scene:didUpdateWithDiff:transitionContext:completion:] + 210
30 UIKitCore 0x00007fff762fa3b8 -[UIApplication workspace:didCreateScene:withTransitionContext:completion:] + 524
31 UIKitCore 0x00007fff762fa122 -[UIApplicationSceneClientAgent scene:didInitializeWithEvent:completion:] + 361
32 FrontBoardServices 0x00007fff5225a25d -[FBSSceneImpl _callOutQueue_agent_didCreateWithTransitionContext:completion:] + 453
33 FrontBoardServices 0x00007fff5225a083 __86-[FBSWorkspaceScenesClient sceneID:createWithParameters:transitionContext:completion:]_block_invoke.156 + 102
34 FrontBoardServices 0x00007fff52259f02 -[FBSWorkspace _calloutQueue_executeCalloutFromSource:withBlock:] + 220
35 FrontBoardServices 0x00007fff52259b0d __86-[FBSWorkspaceScenesClient sceneID:createWithParameters:transitionContext:completion:]_block_invoke + 354
36 libdispatch.dylib 0x000000010091e826 _dispatch_client_callout + 8
37 libdispatch.dylib 0x0000000100922070 _dispatch_block_invoke_direct + 289
38 FrontBoardServices 0x00007fff52259996 __FBSSERIALQUEUE_IS_CALLING_OUT_TO_A_BLOCK__ + 30
39 FrontBoardServices 0x00007fff52259766 -[FBSSerialQueue _queue_performNextIfPossible] + 441
40 FrontBoardServices 0x00007fff52259593 -[FBSSerialQueue _performNextFromRunLoopSource] + 22
41 CoreFoundation 0x00007fff35a49f12 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
42 CoreFoundation 0x00007fff35a49eb1 __CFRunLoopDoSource0 + 103
43 CoreFoundation 0x00007fff35a49ccb __CFRunLoopDoSources0 + 209
44 CoreFoundation 0x00007fff35a489fa __CFRunLoopRun + 927
45 CoreFoundation 0x00007fff35a47ffe CFRunLoopRunSpecific + 462
46 HIToolbox 0x00007fff3467babd RunCurrentEventLoopInMode + 292
47 HIToolbox 0x00007fff3467b6f4 ReceiveNextEventCommon + 359
48 HIToolbox 0x00007fff3467b579 _BlockUntilNextEventMatchingListInModeWithFilter + 64
49 AppKit 0x00007fff32cc6c99 _DPSNextEvent + 883
50 AppKit 0x00007fff32cc54e0 -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 1352
51 AppKit 0x00007fff32cb71ee -[NSApplication run] + 658
52 AppKit 0x00007fff32c88ff6 NSApplicationMain + 777
53 AppKit 0x00007fff32faaa85 _NSApplicationMainWithInfoDictionary + 16
54 UIKitMacHelper 0x00007fff66bf4e00 UINSApplicationMain + 322
55 UIKitCore 0x00007fff762db6ff UIApplicationMain + 2130
56 <Project Name> 0x00000001002222db main + 75
57 libdyld.dylib 0x00007fff6f991cc9 start + 1
58 ??? 0x0000000000000003 0x0 + 3
)
libc++abi.dylib: terminating with uncaught exception of type NSException
我无法使用新的Xcode项目来重新创建此问题。
关于如何解决此问题的任何想法？预先感谢。
似乎CFBundleName中可能缺少Info.plist。
提示在错误中：
[__NSDictionaryM setObject:forKey:]: object cannot be nil (key: title)