iOS11 WKWebview 由于 NSInvalidUnarchiveOperationException 而崩溃

Question

我正在使用 ObjectiveC 开发一个针对 iOS 11 具有一个视图 controller/view 的 SingleView 应用程序。在视图顶部的 Main.storyboard 中，我删除了一个 WebKit 视图 (WKWebView)。

我看到模拟器和 iPhone 6 运行 iOS 11.0.1 :

都崩溃了

由于未捕获的异常 'NSInvalidUnarchiveOperationException' 而终止应用程序，原因：'Could not instantiate class named WKWebView'

我还需要其他什么来让它工作吗？看起来它无法在从故事板唤醒时实例化 WKWebView。

其他详情：

Xcode 版本 9.0 9A235
当我从情节提要中删除 WKWebView 时，崩溃消失了
App Base SDK - 最新 iOS (iOS 11);部署目标 11.0
使用 WebView（已弃用）-- UIWebView，有效
我没有尝试手动实例化它

崩溃堆栈：

2017-11-06 18:38:27.765519+0200 XYZZMap[15689:1093338] *** Terminating app due to uncaught exception 'NSInvalidUnarchiveOperationException', reason: 'Could not instantiate class named WKWebView'
*** First throw call stack:
(
    0   CoreFoundation                      0x00000001056d01cb __exceptionPreprocess + 171
    1   libobjc.A.dylib                     0x0000000105032f41 objc_exception_throw + 48
    2   CoreFoundation                      0x0000000105744b95 +[NSException raise:format:] + 197
    3   UIKit                               0x000000010692d2c0 UINibDecoderDecodeObjectForValue + 323
    4   UIKit                               0x000000010692d5db UINibDecoderDecodeObjectForValue + 1118
    5   UIKit                               0x000000010692d172 -[UINibDecoder decodeObjectForKey:] + 89
    6   UIKit                               0x00000001062f866b -[UIView initWithCoder:] + 969
    7   UIKit                               0x000000010692d43d UINibDecoderDecodeObjectForValue + 704
    8   UIKit                               0x000000010692d172 -[UINibDecoder decodeObjectForKey:] + 89
    9   UIKit                               0x00000001066dd1a7 -[UIRuntimeConnection initWithCoder:] + 178
    10  UIKit                               0x000000010692d43d UINibDecoderDecodeObjectForValue + 704
    11  UIKit                               0x000000010692d5db UINibDecoderDecodeObjectForValue + 1118
    12  UIKit                               0x000000010692d172 -[UINibDecoder decodeObjectForKey:] + 89
    13  UIKit                               0x00000001066dc3a4 -[UINib instantiateWithOwner:options:] + 1262
    14  UIKit                               0x00000001063f8d07 -[UIViewController _loadViewFromNibNamed:bundle:] + 383
    15  UIKit                               0x00000001063f9610 -[UIViewController loadView] + 177
    16  UIKit                               0x00000001063f9941 -[UIViewController loadViewIfRequired] + 195
    17  UIKit                               0x00000001063fa19e -[UIViewController view] + 27
    18  UIKit                               0x00000001062cdd17 -[UIWindow addRootViewControllerViewIfPossible] + 122
    19  UIKit                               0x00000001062ce41f -[UIWindow _setHidden:forced:] + 294
    20  UIKit                               0x00000001062e12bf -[UIWindow makeKeyAndVisible] + 42
    21  UIKit                               0x0000000106255015 -[UIApplication _callInitializationDelegatesForMainScene:transitionContext:] + 4711
    22  UIKit                               0x000000010625a245 -[UIApplication _runWithMainScene:transitionContext:completion:] + 1720
    23  UIKit                               0x0000000106615c6c __111-[__UICanvasLifecycleMonitor_Compatability _scheduleFirstCommitForScene:transition:firstActivation:completion:]_block_invoke + 924
    24  UIKit                               0x00000001069e33ef +[_UICanvas _enqueuePostSettingUpdateTransactionBlock:] + 153
    25  UIKit                               0x0000000106615865 -[__UICanvasLifecycleMonitor_Compatability _scheduleFirstCommitForScene:transition:firstActivation:completion:] + 249
    26  UIKit                               0x00000001066160c3 -[__UICanvasLifecycleMonitor_Compatability activateEventsOnly:withContext:completion:] + 668
    27  UIKit                               0x0000000106f73c11 __82-[_UIApplicationCanvas _transitionLifecycleStateWithTransitionContext:completion:]_block_invoke + 262
    28  UIKit                               0x0000000106f73aca -[_UIApplicationCanvas _transitionLifecycleStateWithTransitionContext:completion:] + 444
    29  UIKit                               0x0000000106c61b9c __125-[_UICanvasLifecycleSettingsDiffAction performActionsForCanvas:withUpdatedScene:settingsDiff:fromSettings:transitionContext:]_block_invoke + 420
    30  UIKit                               0x0000000106e5cc3e _performActionsWithDelayForTransitionContext + 100
    31  UIKit                               0x0000000106c61998 -[_UICanvasLifecycleSettingsDiffAction performActionsForCanvas:withUpdatedScene:settingsDiff:fromSettings:transitionContext:] + 231
    32  UIKit                               0x00000001069e2a4c -[_UICanvas scene:didUpdateWithDiff:transitionContext:completion:] + 392
    33  UIKit                               0x0000000106258ac6 -[UIApplication workspace:didCreateScene:withTransitionContext:completion:] + 523
    34  UIKit                               0x0000000106821523 -[UIApplicationSceneClientAgent scene:didInitializeWithEvent:completion:] + 369
    35  FrontBoardServices                  0x000000010b539158 -[FBSSceneImpl _didCreateWithTransitionContext:completion:] + 338
    36  FrontBoardServices                  0x000000010b541c4d __56-[FBSWorkspace client:handleCreateScene:withCompletion:]_block_invoke_2 + 235
    37  libdispatch.dylib                   0x00000001096b643c _dispatch_client_callout + 8
    38  libdispatch.dylib                   0x00000001096bbaf4 _dispatch_block_invoke_direct + 592
    39  FrontBoardServices                  0x000000010b56d672 __FBSSERIALQUEUE_IS_CALLING_OUT_TO_A_BLOCK__ + 24
    40  FrontBoardServices                  0x000000010b56d328 -[FBSSerialQueue _performNext] + 464
    41  FrontBoardServices                  0x000000010b56d897 -[FBSSerialQueue _performNextFromRunLoopSource] + 45
    42  CoreFoundation                      0x00000001056732b1 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
    43  CoreFoundation                      0x0000000105712d31 __CFRunLoopDoSource0 + 81
    44  CoreFoundation                      0x0000000105657c19 __CFRunLoopDoSources0 + 185
    45  CoreFoundation                      0x00000001056571ff __CFRunLoopRun + 1279
    46  CoreFoundation                      0x0000000105656a89 CFRunLoopRunSpecific + 409
    47  GraphicsServices                    0x000000010be609c6 GSEventRunModal + 62
    48  UIKit                               0x000000010625bd30 UIApplicationMain + 159
    49  XYZZMap                             0x00000001047274bf main + 111
    50  libdyld.dylib                       0x0000000109732d81 start + 1
    51  ???                                 0x0000000000000001 0x0 + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException

谢谢！

Answer 1

加载笔尖/故事板时出现 NSInvalidUnarchiveOperationException 意味着笔尖/故事板中存在运行时无法理解的对象。这是因为缺少定义那种对象的框架。

因此，在这种情况下，您需要 link 您的应用针对 WebKit 框架，以便应用在从情节提要中解码时了解 WKWebView 是什么。

以下屏幕截图显示了正确配置后应用目标的构建阶段：

Answer 2

Select 目标 -> 常规 -> 链接的框架和库 -> 单击下面的 + 符号 -> 搜索 webKit.Framwork -> 添加。

Answer 3

我也遇到过同样的问题。

没有将 WKWebView 声明为 Outlet

在模拟器运行中出现此错误

添加 Outlet 后对我来说效果很好。

希望对您有所帮助:)

Answer 4

检查故事板上是否有 WKWebView 个实例，而在代码中您可能有 UIWebView 个实例

Answer 5

单击“项目目标”，然后添加 webKit.Framwork，如下所示：

常规 -> 链接框架和库 -> 单击下面的 + 符号 -> 搜索 webKit.Framwork -> 添加。

Answer 6

更新 swift 5.0 ++ 并且 Xcode- 11.5 +

如果您在 storyboard 中链接 WKWebView 后遇到我在下面提到的这个问题。

NSInvalidUnarchiveOperationException', reason: 'Could not instantiate class named WKWebView because no class named WKWebView was found; the class needs to be defined in source code or linked in from a library (ensure the class is part of the correct target)

只需按照此说明在新 Xcode 中解决此问题。

这是一个屏幕截图，显示正确配置后项目目标的构建阶段：

iOS11 WKWebview 由于 NSInvalidUnarchiveOperationException 而崩溃

iOS11 WKWebview crash due to NSInvalidUnarchiveOperationException

iphone

objective-c

ios

wkwebview

ios11