All geek questions in one place

Problems with NotFound errors and compilation failures

We often get errors every time using the WCF service (consumed by Silverlight), which does not give us much to continue:

The service '/ourservice.svc' cannot be activated due to an exception during compilation.  
The exception message is: Object reference not set to an instance of an object .. ---> 
System.NullReferenceException: Object reference not set to an instance of an object.
at System.Web.Compilation.DiskBuildResultCache.CacheBuildResult (String cacheKey, BuildResult result, Int64 hashCode, DateTime utcStart)
   at System.Web.Compilation.BuildManager.CacheBuildResultInternal (String cacheKey, BuildResult result, Int64 hashCode, DateTime utcStart)
   at System.Web.Compilation.BuildManager.CompileWebFile (VirtualPath virtualPath)
   at System.Web.Compilation.BuildManager.GetVPathBuildResultInternal (VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile)
   at System.Web.Compilation.BuildManager.GetVPathBuildResultWithNoAssert (HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile)

The service compiles / works fine when I use it through a browser or using the silverlight client. The Silverlight side of the system also reports an equally useful error:

System.ServiceModel.CommunicationException: 
[HttpWebRequest_WebException_RemoteServer]Arguments: NotFound

The only thing I managed to find might have changed the instancing behavior , but I'm not sure why we need it, and I cannot say that the default is the same.

  • It is hosted on Windows 2008 SP1
  • The server is behind the load balancer
  • The timeouts in web.config for the service are 5 minutes.
  • - 50000000
  • AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)

Update

- Silverlight ( + )

There was an error saving the report - The error object contained errors
System.ServiceModel.CommunicationException: [HttpWebRequest_WebException_RemoteServer]
Arguments: NotFound
Debugging resource strings are unavailable. Often the key and arguments provide sufficient information to diagnose the problem. See http://go.microsoft.com/fwlink/?linkid=106663&Version=4.0.60129.0&File=System.Windows.dll&Key=HttpWebRequest_WebException_RemoteServer ---> System.Net.WebException: [HttpWebRequest_WebException_RemoteServer]
Arguments: NotFound
Debugging resource strings are unavailable. Often the key and arguments provide sufficient information to diagnose the problem. See http://go.microsoft.com/fwlink/?linkid=106663&Version=4.0.60129.0&File=System.Windows.dll&Key=HttpWebRequest_WebException_RemoteServer ---> System.Net.WebException: [HttpWebRequest_WebException_RemoteServer]
Arguments: NotFound
Debugging resource strings are unavailable. Often the key and arguments provide sufficient information to diagnose the problem. See http://go.microsoft.com/fwlink/?linkid=106663&Version=4.0.60129.0&File=System.Windows.dll&Key=HttpWebRequest_WebException_RemoteServer
   at System.Net.Browser.BrowserHttpWebRequest.InternalEndGetResponse(IAsyncResult asyncResult)
   at System.Net.Browser.BrowserHttpWebRequest.<>c__DisplayClass5.<EndGetResponse>b__4(Object sendState)
   at System.Net.Browser.AsyncHelper.<>c__DisplayClass4.<BeginOnUI>b__1(Object sendState)
   --- End of inner exception stack trace ---
   at System.Net.Browser.AsyncHelper.BeginOnUI(SendOrPostCallback beginMethod, Object state)
   at System.Net.Browser.BrowserHttpWebRequest.EndGetResponse(IAsyncResult asyncResult)
   at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelAsyncRequest.CompleteGetResponse(IAsyncResult result)
   --- End of inner exception stack trace ---
   at System.ServiceModel.AsyncResult.End[TAsyncResult](IAsyncResult result)
   at System.ServiceModel.Channels.ServiceChannel.EndCall(String action, Object[] outs, IAsyncResult result)
   at System.ServiceModel.ClientBase`1.ChannelBase`1.EndInvoke(String methodName, Object[] args, IAsyncResult result)
   at MyNamespaceSilverlight.Core.ReportServiceReference.ReportServiceClient.ReportServiceClientChannel.EndUpdateReport(IAsyncResult result)
   at MyNamespaceSilverlight.Core.ReportServiceReference.ReportServiceClient.MyNamespaceSilverlight.Core.ReportServiceReference.IReportService.EndUpdateReport(IAsyncResult result)
   at MyNamespaceSilverlight.Core.ReportServiceReference.ReportServiceClient.OnEndUpdateReport(IAsyncResult result)
   at System.ServiceModel.ClientBase`1.OnAsyncCallCompleted(IAsyncResult result)
+3
4

- , \bin? ASP.NET ASP.NET \bin , , , , .

\bin . , \bin, . - - , \logs ASP.NET :

<location path="logs">
    <system.web>
        <authorization>
            <deny users="*" />
        </authorization>
    </system.web>
</location>
+9

: , , , .

+1

System.Web. : http://connect.microsoft.com/VisualStudio/feedback/details/550511/nullreferenceexception-during-service-compilation.

The jury is still not working, but I think that you have every chance to solve this problem if you post your data on http://connect.microsoft.com .

+1
source

We got a similar error when testing WCF services when one of the developers started deploying a new version of the service.

+1
source

Source: https://habr.com/ru/post/1792187/

More articles:


All Articles