无法分配给对象

时间：2018-06-12 09:15:03

标签： angular webpack

将@ angular / platform-b​​rowser（以及其他@ angular / xxx）升级到版本6.0.4之后，我在第一次加载应用程序时以及每次首页重新加载后出现此错误（第一次F5：错误，第二次F5 ：工作）：

  

NodeInvocationException：无法分配给只读属性   对象'[object Object]的'stopImmediatePropagation''TypeError：   无法分配给只读属性'stopImmediatePropagation'   对象'[对象]'在   DomEventsPlugin.module.exports ../ node_modules/@angular/platform-b​​rowser/bundles/platform-b​​rowser.umd.js.DomEventsPlugin.patchEvent   （I：\ PROGETTI \平台\ SOFTWARE \ CTAgenda \ ClientApp \ DIST \ vendor.js：60044：50）   在新的DomEventsPlugin   （I：\ PROGETTI \平台\ SOFTWARE \ CTAgenda \ ClientApp \ DIST \ vendor.js：60031：15）   在_callFactory的eval（ng：///AppModule/module.ngfactory.js:51:25）   （I：\ PROGETTI \平台\ SOFTWARE \ CTAgenda \ ClientApp \ DIST \ vendor.js：40373：28）   在_createProviderInstance $ 1   （I：\ PROGETTI \平台\ SOFTWARE \ CTAgenda \ ClientApp \ DIST \ vendor.js：40319：26）   在resolveNgModuleDep   （I：\ PROGETTI \平台\ SOFTWARE \ CTAgenda \ ClientApp \ DIST \ vendor.js：40282：21）   在_createClass   （I：\ PROGETTI \平台\ SOFTWARE \ CTAgenda \ ClientApp \ DIST \ vendor.js：40346：29）   在_createProviderInstance $ 1   （I：\ PROGETTI \平台\ SOFTWARE \ CTAgenda \ ClientApp \ DIST \ vendor.js：40316：26）   在resolveNgModuleDep   （I：\ PROGETTI \平台\ SOFTWARE \ CTAgenda \ ClientApp \ DIST \ vendor.js：40282：21）   在_createClass   （I：\ PROGETTI \平台\ SOFTWARE \ CTAgenda \ ClientApp \ DIST \ vendor.js：40352：32）

这是我的vendor.js中生成错误的代码：

DomEventsPlugin.prototype.patchEvent = function () {
    if (!Event || !Event.prototype) {
        return;
    }
    if (Event.prototype[stopMethodSymbol]) {
        // already patched by zone.js
        return;
    }
    var delegate = Event.prototype[stopMethodSymbol] =
        Event.prototype.stopImmediatePropagation;
    Event.prototype.stopImmediatePropagation = function () { <-- ERROR
        if (this) {
            this[stopSymbol] = true;
        }
        // should call native delegate in case
        // in some environment part of the application
        // will not use the patched Event
        delegate && delegate.apply(this, arguments);
    };
};

这是我的环境

  • .NET Core 2.1
  • Angular 6.0.4
  • Angular / Cli 6.0.8
  • Webpack 4.12.0
  • aspnet-prerendering 3.0.1
  • aspnet-webpack 3.0.0

在开发模式下，我的webpack dev中间件处于活动状态，错误是否与创建供应商的时间有关？应用程序创建供应商的第一个加载时间，第二次从缓存中取出供应商：

info: Microsoft.AspNetCore.Hosting.Internal.WebHost[1]
      Request starting HTTP/1.1 GET http://localhost:5000/
info: Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker[1]
      Route matched with {action = "Index", controller = "Home"}. Executing action CTAgenda.Controllers.HomeController.Index (CTAgenda)
info: Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker[1]
      Executing action method CTAgenda.Controllers.HomeController.Index (CTAgenda) - Validation state: Valid
info: Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker[2]
      Executed action method CTAgenda.Controllers.HomeController.Index (CTAgenda), returned result Microsoft.AspNetCore.Mvc.ViewResult in 0.626ms.
info: Microsoft.AspNetCore.Mvc.ViewFeatures.ViewResultExecutor[1]
      Executing ViewResult, running view Index.
info: Microsoft.AspNetCore.Hosting.Internal.WebHost[1]
      Request starting HTTP/1.1 GET http://localhost:5000/dist/__webpack_hmr
info: Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker[2]
      Executed action CTAgenda.Controllers.HomeController.Index (CTAgenda) in 1660.2506ms
fail: Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware[1]
      An unhandled exception has occurred while executing the request.
Microsoft.AspNetCore.NodeServices.HostingModels.NodeInvocationException: Cannot assign to read only property 'stopImmediatePropagation' of object '[object Object]'
TypeError: Cannot assign to read only property 'stopImmediatePropagation' of object '[object Object]'
    at DomEventsPlugin.module.exports../node_modules/@angular/platform-browser/bundles/platform-browser.umd.js.DomEventsPlugin.patchEvent (I:\Progetti\Platform\Software\CTAgenda\ClientApp\dist\vendor.js:60044:50)
    at new DomEventsPlugin (I:\Progetti\Platform\Software\CTAgenda\ClientApp\dist\vendor.js:60031:15)
    at eval (ng:///AppModule/module.ngfactory.js:51:25)
    at _callFactory (I:\Progetti\Platform\Software\CTAgenda\ClientApp\dist\vendor.js:40373:28)
    at _createProviderInstance$1 (I:\Progetti\Platform\Software\CTAgenda\ClientApp\dist\vendor.js:40319:26)
    at resolveNgModuleDep (I:\Progetti\Platform\Software\CTAgenda\ClientApp\dist\vendor.js:40282:21)
    at _createClass (I:\Progetti\Platform\Software\CTAgenda\ClientApp\dist\vendor.js:40346:29)
    at _createProviderInstance$1 (I:\Progetti\Platform\Software\CTAgenda\ClientApp\dist\vendor.js:40316:26)
    at resolveNgModuleDep (I:\Progetti\Platform\Software\CTAgenda\ClientApp\dist\vendor.js:40282:21)
    at _createClass (I:\Progetti\Platform\Software\CTAgenda\ClientApp\dist\vendor.js:40352:32)
   at Microsoft.AspNetCore.NodeServices.HostingModels.HttpNodeInstance.InvokeExportAsync[T](NodeInvocationInfo invocationInfo, CancellationToken cancellationToken)
   at Microsoft.AspNetCore.NodeServices.HostingModels.OutOfProcessNodeInstance.InvokeExportAsync[T](CancellationToken cancellationToken, String moduleName, String exportNameOrNull, Object[] args)
   at Microsoft.AspNetCore.NodeServices.NodeServicesImpl.InvokeExportWithPossibleRetryAsync[T](String moduleName, String exportedFunctionName, Object[] args, Boolean allowRetry, CancellationToken cancellationToken)
   at Microsoft.AspNetCore.NodeServices.NodeServicesImpl.InvokeExportWithPossibleRetryAsync[T](String moduleName, String exportedFunctionName, Object[] args, Boolean allowRetry, CancellationToken cancellationToken)
   at Microsoft.AspNetCore.SpaServices.Prerendering.PrerenderTagHelper.ProcessAsync(TagHelperContext context, TagHelperOutput output)
   at Microsoft.AspNetCore.Razor.Runtime.TagHelpers.TagHelperRunner.RunAsync(TagHelperExecutionContext executionContext)
   at AspNetCore.Views_Home_Index.ExecuteAsync() in I:\Progetti\Platform\Software\CTAgenda\Views\Home\Index.cshtml:line 2
   at Microsoft.AspNetCore.Mvc.Razor.RazorView.RenderPageCoreAsync(IRazorPage page, ViewContext context)
   at Microsoft.AspNetCore.Mvc.Razor.RazorView.RenderPageAsync(IRazorPage page, ViewContext context, Boolean invokeViewStarts)
   at Microsoft.AspNetCore.Mvc.Razor.RazorView.RenderAsync(ViewContext context)
   at Microsoft.AspNetCore.Mvc.ViewFeatures.ViewExecutor.ExecuteAsync(ViewContext viewContext, String contentType, Nullable`1 statusCode)
   at Microsoft.AspNetCore.Mvc.ViewFeatures.ViewExecutor.ExecuteAsync(ActionContext actionContext, IView view, ViewDataDictionary viewData, ITempDataDictionary tempData, String contentType, Nullable`1 statusCode)
   at Microsoft.AspNetCore.Mvc.ViewFeatures.ViewResultExecutor.ExecuteAsync(ActionContext context, ViewResult result)
   at Microsoft.AspNetCore.Mvc.ViewResult.ExecuteResultAsync(ActionContext context)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeResultAsync(IActionResult result)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeNextResultFilterAsync[TFilter,TFilterAsync]()
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Rethrow(ResultExecutedContext context)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.ResultNext[TFilter,TFilterAsync](State& next, Scope& scope, Object& state, Boolean& isCompleted)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeResultFilters()
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeNextResourceFilter()
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Rethrow(ResourceExecutedContext context)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeFilterPipelineAsync()
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeAsync()
   at Microsoft.AspNetCore.Builder.RouterMiddleware.Invoke(HttpContext httpContext)
   at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
   at Microsoft.AspNetCore.StaticFiles.StaticFileMiddleware.Invoke(HttpContext context)
   at Microsoft.AspNetCore.SpaServices.Webpack.ConditionalProxyMiddleware.Invoke(HttpContext context)
   at Microsoft.AspNetCore.SpaServices.Webpack.ConditionalProxyMiddleware.Invoke(HttpContext context)
   at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext context)
info: Microsoft.AspNetCore.Hosting.Internal.WebHost[2]
      Request finished in 2035.1489ms 500 text/html; charset=utf-8
fail: Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware[1]
      An unhandled exception has occurred while executing the request.
System.Threading.Tasks.TaskCanceledException: The operation was canceled. ---> System.IO.IOException: Unable to read data from the transport connection: Operazione di I/O terminata a causa dell'uscita dal thread oppure della richiesta di un'applicazione. ---> System.Net.Sockets.SocketException: Operazione di I/O terminata a causa dell'uscita dal thread oppure della richiesta di un'applicazione
   --- End of inner exception stack trace ---
   at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.ThrowException(SocketError error)
   at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.GetResult(Int16 token)
   at System.Net.Http.HttpConnection.FillAsync()
   at System.Net.Http.HttpConnection.ReadNextResponseHeaderLineAsync(Boolean foldedHeadersAllowed)
   at System.Net.Http.HttpConnection.SendAsyncCore(HttpRequestMessage request, CancellationToken cancellationToken)
   --- End of inner exception stack trace ---
   at System.Net.Http.HttpConnection.SendAsyncCore(HttpRequestMessage request, CancellationToken cancellationToken)
   at System.Net.Http.HttpConnectionPool.SendWithRetryAsync(HttpRequestMessage request, Boolean doRequestAuth, CancellationToken cancellationToken)
   at System.Net.Http.RedirectHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
   at System.Net.Http.HttpClient.FinishSendAsyncUnbuffered(Task`1 sendTask, HttpRequestMessage request, CancellationTokenSource cts, Boolean disposeCts)
   at Microsoft.AspNetCore.SpaServices.Webpack.ConditionalProxyMiddleware.PerformProxyRequest(HttpContext context)
   at Microsoft.AspNetCore.SpaServices.Webpack.ConditionalProxyMiddleware.Invoke(HttpContext context)
   at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext context)
info: Microsoft.AspNetCore.Hosting.Internal.WebHost[2]
      Request finished in 600.0987ms 500 text/html; charset=utf-8
info: Microsoft.AspNetCore.NodeServices[0]
      i ´¢ówdm´¢ú: wait until bundle finished: /dist/__webpack_hmr
info: Microsoft.AspNetCore.NodeServices[0]
      Node will restart because file changed: I:\Progetti\Platform\Software\CTAgenda\wwwroot\dist\main-client.js
info: Microsoft.AspNetCore.NodeServices[0]
      webpack built 1c1bbe760c1dbb40f7fd in 72352ms
info: Microsoft.AspNetCore.NodeServices[0]
      i ´¢ówdm´¢ú: Hash: 1c1bbe760c1dbb40f7fd
      Version: webpack 4.12.0
      Time: 72352ms
      Built at: 2018-06-12 11:06:08
                   Asset      Size       Chunks             Chunk Names
          main-client.js  1.94 MiB  main-client  [emitted]  main-client
                    0.js  48.5 KiB            0  [emitted]
                    1.js  48.3 KiB            1  [emitted]
      main-client.js.map  34.4 KiB  main-client  [emitted]  main-client
                0.js.map  81 bytes            0  [emitted]
                1.js.map  81 bytes            1  [emitted]
      Entrypoint main-client = main-client.js main-client.js.map
info: Microsoft.AspNetCore.NodeServices[0]
      i ´¢ówdm´¢ú: Compiled successfully.

感谢您的支持。

2 个答案:

答案 0 :(得分：0)

我有同样的问题。尝试更改

DomEventsPlugin.prototype.patchEvent = function () {
    if (!Event || !Event.prototype) {
        return;
    }
    if (Event.prototype[stopMethodSymbol]) {
        // already patched by zone.js
        return;
    }
    var delegate = Event.prototype[stopMethodSymbol] =
        Event.prototype.stopImmediatePropagation;
    Event.prototype[stopMethodSymbol] = function () {  <-- CHANGE
        if (this) {
            this[stopSymbol] = true;
        }
        // should call native delegate in case
        // in some environment part of the application
        // will not use the patched Event
        delegate && delegate.apply(this, arguments);
    };
};

答案 1 :(得分：0)

全局更新了我所有的软件包之后，所有内容重新开始工作。其他用户也一样，请勾选GitHub issue

我的package.json：

{{1}}
相关问题
最新问题