由于NSInvalidUnarchiveOperationException,iOS11 WKWebview崩溃

时间:2017-11-06 17:22:23

标签: ios objective-c iphone ios11 wkwebview

使用ObjectiveC我正在开发一个面向iOS 11的SingleView应用程序,它有一个视图控制器/视图。在视图顶部的Main.storyboard中,我删除了一个WebKit视图(WKWebView)。

我在模拟器和运行iOS 11.0.1的iPhone 6上都看到了崩溃:

由于未捕获的异常终止应用' NSInvalidUnarchiveOperationException',原因:'无法实例化名为WKWebView的类'

我还需要其他任何东西才能让它正常工作吗?看起来它无法在从故事板唤醒时实例化WKWebView。

其他细节:

  • Xcode版本9.0 9A235
  • 当我从故事板中删除WKWebView时,崩溃就消失了
  • App Base SDK - 最新iOS(iOS 11);部署目标11.0
  • 使用WebView(不建议使用) - UIWebView,它可以正常工作
  • 我没有尝试手动实例化

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!

6 个答案:

答案 0 :(得分:95)

NSInvalidUnarchiveOperationException在加载nib / storyboard时意味着nib / storyboard中有一个运行时不能理解的对象。这是因为缺少定义该类对象的框架。

因此,在这种情况下,您需要将您的应用目标链接到WebKit框架,以便应用程序了解从故事板解码时WKWebView的内容。

这是一个屏幕截图,显示正确配置应用目标的构建阶段:

enter image description here

答案 1 :(得分:25)

选择目标 - >一般 - >链接的框架和库 - >点击下面的+符号 - >搜索webKit.Framwork - >添加。

答案 2 :(得分:2)

检查故事板上是否有WKWebView实例,而在代码中是否有UIWebView实例

答案 3 :(得分:2)

更新为Swift 5.0 ++ 和Xcode- 11.5 +

如果在WKWebView中链接了storyboard之后遇到了我下面提到的这个问题。

NSInvalidUnarchiveOperationException”,原因:“无法实例化 名为WKWebView的类,因为未找到名为WKWebView的类;的 类需要在源代码中定义或从库中链接 (确保班级是正确目标的一部分)

只需按照以下说明在新的Xcode中解决此问题即可。

下面的屏幕快照显示了正确配置项目目标的构建阶段:

enter image description here

答案 4 :(得分:1)

我也遇到过同样的问题。

没有将WKWebView声明为插座

Without declaring as Outlet

在模拟器中运行时遇到此错误

enter image description here

enter image description here

enter image description here

添加Outlet后,对我来说效果很好。


希望对您有所帮助:)

答案 5 :(得分:1)

单击Project Target,然后添加webKit.Framwork,如下所示:

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

enter image description here