每当我尝试在我的应用程序上使用navigationController推送视图时，我都会收到下面提供的控制台消息。但是，如果我只推动简单的视图控制器它工作正常，它只发生在导航控制器上。
我没有使用第三方库来推送视图，我检查过UIkit框架没关系，我也在构建之前清理项目，还尝试了一个与我的自定义视图控制器不同的新视图控制器，但错误是一样的，它只发生在Xcode 9.0的新版本上，在早期版本8.0上没有发生这种情况。
*** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Sigh. Contentview size is zero.' *** First throw call stack: ( 0 CoreFoundation 0x000000010d6ec1cb __exceptionPreprocess + 171 1 libobjc.A.dylib 0x00000001132a5f41 objc_exception_throw + 48 2 CoreFoundation 0x000000010d6f1362 +[NSException raise:format:arguments:] + 98 3 Foundation 0x000000010eabb089 -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 193 4 UIKit 0x00000001110d7701 -[_UINavigationBarVisualProviderModernIOS _contentViewFittingHeight] + 265 5 UIKit 0x00000001110da40e -[_UINavigationBarVisualProviderModernIOS heightRangeFittingWidth:] + 427 6 UIKit 0x00000001110da253 -[_UINavigationBarVisualProviderModernIOS sizeThatFits:] + 138 7 UIKit 0x000000011105443d -[UIView(UIConstraintBasedLayout) systemLayoutSizeFittingSize:withHorizontalFittingPriority:verticalFittingPriority:] + 246 8 UIKit 0x00000001106cc900 -[UINavigationController setNavigationBar:] + 348 9 UIKit 0x00000001106cc677 -[UINavigationController _navigationBarHiddenByDefault:] + 161 10 UIKit 0x00000001106d4a7d -[UINavigationController loadView] + 183 11 UIKit 0x0000000110697941 -[UIViewController loadViewIfRequired] + 195 12 UIKit 0x000000011069819e -[UIViewController view] + 27 13 UIKit 0x00000001106e36f6 -[UINavigationController pushViewController:transition:forceImmediate:] + 676 14 UIKit 0x00000001106e31d2 -[UINavigationController pushViewController:animated:] + 792 15 UIKit 0x00000001106c2cd1 -[UINavigationController initWithRootViewController:] + 125 16 Tigo Money Staging 0x000000010a1add26 -[MTAppDelegate openStartUp] + 358 17 Tigo Money Staging 0x000000010a1ac8c1 -[MTAppDelegate application:didFinishLaunchingWithOptions:] + 241 18 UIKit 0x00000001104f135a -[UIApplication _handleDelegateCallbacksWithOptions:isSuspended:restoreState:] + 267 19 UIKit 0x00000001104f2db7 -[UIApplication _callInitializationDelegatesForMainScene:transitionContext:] + 4105 20 UIKit 0x00000001104f8245 -[UIApplication _runWithMainScene:transitionContext:completion:] + 1720 21 UIKit 0x00000001108b3c6c __111-[__UICanvasLifecycleMonitor_Compatability _scheduleFirstCommitForScene:transition:firstActivation:completion:]_block_invoke + 924 22 UIKit 0x0000000110c813ef +[_UICanvas _enqueuePostSettingUpdateTransactionBlock:] + 153 23 UIKit 0x00000001108b3865 -[__UICanvasLifecycleMonitor_Compatability _scheduleFirstCommitForScene:transition:firstActivation:completion:] + 249 24 UIKit 0x00000001108b40c3 -[__UICanvasLifecycleMonitor_Compatability activateEventsOnly:withContext:completion:] + 668 25 UIKit 0x0000000111211c11 __82-[_UIApplicationCanvas _transitionLifecycleStateWithTransitionContext:completion:]_block_invoke + 262 26 UIKit 0x0000000111211aca -[_UIApplicationCanvas _transitionLifecycleStateWithTransitionContext:completion:] + 444 27 UIKit 0x0000000110effb9c __125-[_UICanvasLifecycleSettingsDiffAction performActionsForCanvas:withUpdatedScene:settingsDiff:fromSettings:transitionContext:]_block_invoke + 420 28 UIKit 0x00000001110fac3e _performActionsWithDelayForTransitionContext + 100 29 UIKit 0x0000000110eff998 -[_UICanvasLifecycleSettingsDiffAction performActionsForCanvas:withUpdatedScene:settingsDiff:fromSettings:transitionContext:] + 231 30 UIKit 0x0000000110c80a4c -[_UICanvas scene:didUpdateWithDiff:transitionContext:completion:] + 392 31 UIKit 0x00000001104f6ac6 -[UIApplication workspace:didCreateScene:withTransitionContext:completion:] + 523 32 UIKit 0x0000000110abf523 -[UIApplicationSceneClientAgent scene:didInitializeWithEvent:completion:] + 369 33 FrontBoardServices 0x0000000118890158 -[FBSSceneImpl _didCreateWithTransitionContext:completion:] + 338 34 FrontBoardServices 0x0000000118898c4d __56-[FBSWorkspace client:handleCreateScene:withCompletion:]_block_invoke_2 + 235 35 libdispatch.dylib 0x000000011411743c _dispatch_client_callout + 8 36 libdispatch.dylib 0x000000011411caf4 _dispatch_block_invoke_direct + 592 37 FrontBoardServices 0x00000001188c4672 __FBSSERIALQUEUE_IS_CALLING_OUT_TO_A_BLOCK__ + 24 38 FrontBoardServices 0x00000001188c4328 -[FBSSerialQueue _performNext] + 464 39 FrontBoardServices 0x00000001188c4897 -[FBSSerialQueue _performNextFromRunLoopSource] + 45 40 CoreFoundation 0x000000010d68f2b1 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17 41 CoreFoundation 0x000000010d72ed31 __CFRunLoopDoSource0 + 81 42 CoreFoundation 0x000000010d673c19 __CFRunLoopDoSources0 + 185 43 CoreFoundation 0x000000010d6731ff __CFRunLoopRun + 1279 44 CoreFoundation 0x000000010d672a89 CFRunLoopRunSpecific + 409 45 GraphicsServices 0x0000000114ce59c6 GSEventRunModal + 62 46 UIKit 0x00000001104f9d30 UIApplicationMain + 159 47 Tigo Money Staging 0x000000010a2f8a5f main + 111 48 libdyld.dylib 0x0000000114193d81 start + 1 49 ??? 0x0000000000000001 0x0 + 1 ) libc++abi.dylib: terminating with uncaught exception of type NSException
这是我在didFinishLaunchingWithOptions
上的代码示例self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
CustomViewController *startUpVC = [[CustomViewController alloc] init];
UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:startUpVC];
使用导航控制器后，它会崩溃。
答案 0 :(得分：0)
我遇到了同样的问题，当我们使用Xcode 8保存故事板并在项目中使用Xcode 9打开时，发生这种情况是因为Xcode 9使用安全区域保存文档。 使用Xcode 9保存的Xib源代码：
<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="13196" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES">
<device id="retina4_7" orientation="portrait">
<adaptation id="fullscreen"/>
</device>
<dependencies>
<deployment identifier="iOS"/>
<plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13173"/>
<capability name="Constraints with non-1.0 multipliers" minToolsVersion="5.1"/>
<capability name="Safe area layout guides" minToolsVersion="9.0"/>
<capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
</dependencies>
</document>
但使用Xcode 8保存的Xib是：
<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="12120" systemVersion="16F73" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" colorMatched="YES">
<device id="retina4_0" orientation="portrait">
<adaptation id="fullscreen"/>
</device>
<dependencies>
<plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="12088"/>
<capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
</dependencies>
</document>
相应地更改故事板的源代码。
希望，它会帮助你！
答案 1 :(得分：0)
选择您的View Controller，然后转到Editor-＆gt; Embed In-＆gt; Navigation Controller。因为有时控制器不在导航控制器层次结构中，所以当用户想要推送到另一个控制器时应用程序崩溃。希望它会有所帮助。
答案 2 :(得分：0)
当我将我的右栏按钮项从情节提要板连接到IBAction时，会出现此错误，如果您问我，这将非常有趣。
答案 3 :(得分：0)
我发现导致此问题的一个常见原因是，当您尝试修改视图之前时，已在UINavigationController中调用了viewDidLoad（例如，在任何init方法中）。
通常在这些情况下，将与UINavigationController有关的所有与视图相关的修改移至viewWillAppear（或至少移至对viewDidLoad的超级调用之后）就足够了。