由于NSInvalidUnarchiveOperationException而导致iOS11 WKWebview崩溃


74

使用ObjectiveC,我正在开发针对iOS 11的SingleView应用,该应用具有一个视图控制器/视图。在视图顶部的Main.storyboard中,我放置了一个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“ NSInvalidUnarchiveOperationException”而终止应用程序,原因:“无法实例化名为WKWebView的类”

我还需要其他任何东西才能使其正常工作吗?从情节提要中唤醒后,似乎无法实例化WKWebView。

其他详情:

  • Xcode 9.0版9A235
  • 当我从情节提要中删除WKWebView时,崩溃消失了
  • App Base SDK-最新的iOS(iOS 11);部署目标11.0
  • 使用WebView(不建议使用)-UIWebView,它可以工作
  • 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!

Answers:


166

加载笔尖/故事板时,NSInvalidUnarchiveOperationException表示笔尖/故事板中存在运行时无法理解的对象。这是因为缺少定义此类对象的框架。

因此,在这种情况下,您需要将应用程序目标链接到WebKit框架,以便应用程序了解从情节提要中解码出来的WKWebView是什么。

下面的屏幕快照显示了正确配置了应用目标的构建阶段:

在此处输入图片说明


2
嗨,我也面临同样的错误,已经添加了webkit框架。知道为什么会这样吗?
Matrix

1
很简单,当您考虑一下。@Matrix如果遇到问题,请确保进行清洁和重建,并确保已将框架添加到正确的目标
Mike Irving

1
您真棒,这是我的问题
Naveed Ahmad

我遇到了这个问题,行为很奇怪。如果我启动该应用程序并尝试立即使用Webview,它将崩溃。但是,如果我先执行其他操作,然后在下次启动该应用程序时需要webview,则可以正常运行。我没有链接的Webkit框架。在第一次运行中是否有可能引起某种联系?
sark9012


3

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


3

迅速更新5.0 ++和Xcode-11.5 +

如果您遇到此问题,我在链接WKWebView到时会在下面提到storyboard

NSInvalidUnarchiveOperationException',原因:'无法实例化名为WKWebView的类,因为未找到名为WKWebView的类;该类需要在源代码中定义或从库中链接(确保该类是正确目标的一部分)

只需按照以下说明解决此问题即可Xcode

下面的屏幕快照显示了正确配置后项目目标的构建阶段:

在此处输入图片说明


2

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。

在此处输入图片说明


1

我也面临同样的问题。

无需将WKWebView声明为插座

不声明为插座

在模拟器中运行时出现此错误

在此处输入图片说明

在此处输入图片说明

在此处输入图片说明

添加Outlet后,对我来说效果很好。


希望这可以帮助 :)

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