I am working with silverlight3 with WCF service for a while.. I have developed and hosted my application into client mechine. It was working good. Then i need to do some modifications in my application, so I have added new functions in to my .svc file(i.e in to the wcf service). I have updated the servicereference successfully. When i re published and access it, it throws the error in a particulare method which i newly added.. But the other functions and data retreival are working good.. The newly added functions of the wcf services throws the communication error.
This is the function which i used to bind the combobox by the data retrieved from the wcf service..
Actual Error:
System.Reflection.TargetInvocationException: An exception occurred during the operation, making the result invalid. Check InnerException for exception details. ---> System.ServiceModel.CommunicationException: The remote server returned an error: NotFound. ---> System.Net.WebException: The remote server returned an error: NotFound. ---> System.Net.WebException: The remote server returned an error: NotFound.
at System.Net.Browser.BrowserHttpWebRequest.InternalEndGetResponse(IAsyncResult asyncResult)
at System.Net.Browser.BrowserHttpWebRequest.<>c_DisplayClass5.b_4(Object sendState)
at System.Net.Browser.AsyncHelper.<>c_DisplayClass2.b_0(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.ClientBase1.ChannelBase1.EndInvoke(String methodName, Object[] args, IAsyncResult result)
at foundproject.ServiceReference1.Service1Client.Service1ClientChannel.EndUsergetBasedWorkgroup(IAsyncResult result)
at foundproject.ServiceReference1.Service1Client.ServiceReference1_IService1_EndUsergetBasedWorkgroup(IAsyncResult result)
at foundproject.ServiceReference1.Service1Client.OnEndUsergetBasedWorkgroup(IAsyncResult result)
at System.ServiceModel.ClientBase`1.OnAsyncCallCompleted(IAsyncResult result)
--- End of inner exception stack trace ---
at System.ComponentModel.AsyncCompletedEventArgs.RaiseExceptionIfNecessary()
at foundproject.ServiceReference1.UsergetBasedWorkgroupCompletedEventArgs.get_Result()
at foundproject.UserMaster.BindUsers(Object sender, UsergetBasedWorkgroupCompletedEventArgs e)
Please Please help me to solve it out..
It will be a great help for me..
Thanks
Lakshmi.A
All methods in webservice are implemented using Interfaces, if you have added your function in Class file make sure its implemented by its interface-template/interface-method signature.
You have not changed the namespace of the newly added method.
the access modifier is public.
Try running your webservice file "svc" from IIS Management Console using Browse by Right clicking on "svc" file. it must show a default web service UI that we normally expect.
Debug your web service, and see if it hits the break point over your newly added method.
I'm sure by following these simple steps you will solve your problem.
Related
Server Error in '/OrderProcessingService' Application.
This collection already contains an address with scheme http. There can be at most one address per scheme in this collection.
Parameter name: item
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.ArgumentException: This collection already contains an address with scheme http. There can be at most one address per scheme in this collection.
Parameter name: item
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Can someone help to resolve this issue with expose schema using BizTalk WCF publishing wizard?
After changing web.config file as below
</system.serviceModel>
<serviceHostingEnvironment multipleSiteBindingsEnabled="true" />
</system.serviceModel>
Getting different error and trace as below:
Stack Trace:
[FileNotFoundException: Could not load file or assembly 'Microsoft.BizTalk.Interop.SSOClient, Version=9.0.1000.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.]
Microsoft.BizTalk.Adapter.Wcf.Runtime.BtsServiceHostBase.ConfigureClientCredentials() +0
Microsoft.BizTalk.Adapter.Wcf.Runtime.BtsServiceHostBase.InitializeRuntime() +1173
Microsoft.BizTalk.Adapter.Wcf.Runtime.WebServiceHost`3.InitializeRuntime() +130
System.ServiceModel.ServiceHostBase.OnOpen(TimeSpan timeout) +63
System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout) +563
System.ServiceModel.HostingManager.ActivateService(String normalizedVirtualPath) +135
System.ServiceModel.HostingManager.EnsureServiceAvailable(String normalizedVirtualPath) +654
[ServiceActivationException: The service '/OrderProcessingService/OrderProcessingService.svc' cannot be activated due to an exception during compilation. The exception message is: Could not load file or assembly 'Microsoft.BizTalk.Interop.SSOClient, Version=9.0.1000.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified..]
System.ServiceModel.AsyncResult.End(IAsyncResult result) +15778592
System.ServiceModel.Activation.HostedHttpRequestAsyncResult.End(IAsyncResult result) +15698937
System.ServiceModel.Activation.HostedHttpRequestAsyncResult.ExecuteSynchronous(HttpApplication context, Boolean flowContext) +265
System.ServiceModel.Activation.HttpModule.ProcessRequest(Object sender, EventArgs e) +227
System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +80
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +171
That first error basically means that you have tried publishing multiple different protocols in the same App Pool. You need to have separate IIS App pools for the different protocols.
Also make sure that the Application Pool is running with the Isolated Host user.
I am working in two environments, staging and production. In stage, my site pulls up correctly, however, when I publish to production, I receive the following error:
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Net.WebException: The request failed with HTTP status 404: Not Found.
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
The back end is Visual Basic.
[NullReferenceException: Object reference not set to an instance of an object.]
Navigation.EstablishContext(HttpRequest Request) +492
Navigation..ctor() +79
[Exception: Error creating Navigation object]
Navigation..ctor() +269
UrlRewriteModule.Application_BeginRequest(Object source, EventArgs e) +262
System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +128
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +1513
Please add your code for a better answer.
You are attempting to access a resource that is not specified in your path, you want to:
check your url,and identify what is not properly formatted,
verify your web.config
verify the permission on the file you are trying to access on production environment.
99% sure, 404 Not Found = resource not properly accessed.
I have a project with several WCF services (mix of REST and SOAP). The project has been running On-Prem for 6 months without an issue. We are moving this to Azure but have run into an issue that will prevent us from going live.
The project uses Autofac for it's IOC. We are gonig to host this in a Cloud Service in Azure. Everything appears to work correctly when running locally in the Azure Emulator however once we deploy using the Cloud Service project, everything builds and deploys correctly, but we receive the following error when trying to access a service.
Server Error in '/' Application.
Value cannot be null. Parameter name: key
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.ArgumentNullException: Value cannot be null. Parameter name: key Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[ArgumentNullException: Value cannot be null.
Parameter name: key]
System.ThrowHelper.ThrowArgumentNullException(ExceptionArgument argument) +48
System.Collections.Generic.Dictionary`2.FindEntry(TKey key) +38
System.Collections.Generic.Dictionary`2.TryGetValue(TKey key, TValue& value) +20
System.ServiceModel.Dispatcher.WebHttpDispatchOperationSelector..ctor(ServiceEndpoint endpoint) +2459
System.ServiceModel.Description.WebHttpBehavior.GetOperationSelector(ServiceEndpoint endpoint) +125
System.ServiceModel.Description.WebHttpBehavior.ApplyDispatchBehavior(ServiceEndpoint endpoint, EndpointDispatcher endpointDispatcher) +1955
System.ServiceModel.Description.DispatcherBuilder.InitializeServiceHost(ServiceDescription description, ServiceHostBase serviceHost) +4245
System.ServiceModel.ServiceHostBase.InitializeRuntime() +119
System.ServiceModel.ServiceHostBase.OnOpen(TimeSpan timeout) +45
System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout) +553
System.ServiceModel.HostingManager.ActivateService(ServiceActivationInfo serviceActivationInfo, EventTraceActivity eventTraceActivity) +350
System.ServiceModel.HostingManager.EnsureServiceAvailable(String normalizedVirtualPath, EventTraceActivity eventTraceActivity) +1614
[ServiceActivationException: The service '/Event/Calendar' cannot be activated due to an exception during compilation. The exception message is: Value cannot be null.
Parameter name: key.]
System.Runtime.AsyncResult.End(IAsyncResult result) +925
System.ServiceModel.Activation.HostedHttpRequestAsyncResult.End(IAsyncResult result) +528
System.ServiceModel.Activation.AspNetRouteServiceHttpHandler.EndProcessRequest(IAsyncResult result) +107
System.Web.CallHandlerExecutionStep.OnAsyncHandlerCompletion(IAsyncResult ar) +151
It appears that it's having an issue with the service configuration endpoint. That is registered through Autofac WCF integration using the OOTB RouteTable here:
RouteTable.Routes.Add(new ServiceRoute("Event/Calendar", new AutofacWebServiceHostFactory(), typeof(CalendarSvc)));
All of this works fine in IIS and the local Azure emulator, but once deployed to the cloud service is where we get an issue.
Observed exactly problem. Solved by canceling IntelliTrace on this hosted service.
I did publishing from VS2013 and marked "Enable IntelliTrace" during publishing. Once I canceled this option and re-publish - all works properly....
All works great in IIS Express, but when I debugging into local IIS, I've got error when trying use WCF in app (listed below), which browser shows, but VS don't.
[Window Title]
Visual Studio Just-In-Time Debugger
[Main Instruction]
An unhandled exception ('Unhandled Error in Silverlight Application
Code: 4004
Category: ManagedRuntimeError
Message: System.ServiceModel.DomainServices.Client.DomainOperationException: Invoke operation 'Login' failed. The remote server returned an error: NotFound. ---> System.ServiceModel.CommunicationException: The remote server returned an error: NotFound. ---> System.Net.WebException: The remote server returned an error: NotFound. ---> System.Net.WebException: The remote server returned an error: NotFound.
at System.Net.Browser.BrowserHttpWebRequest.InternalEndGetResponse(IAsyncResult asyncResult)
at System.Net.Browser.BrowserHttpWebRequest.<>c__DisplayClassa.<EndGetResponse>b__9(Object sendState)
at System.Net.Browser.AsyncHelper.<>c__DisplayClass4.<BeginOnUI>b__0(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.DomainServices.Client.WebDomainClient`1.EndInvokeCore(IAsyncResult asyncResult)
at System.ServiceModel.DomainServices.Client.DomainClient.EndInvoke(IAsyncResult asyncResult)
at System.ServiceModel.DomainServices.Client.DomainContext.CompleteInvoke(IAsyncResult asyncResult)
--- End of inner exception stack trace ---
at System.ServiceModel.DomainServices.Client.OperationBase.Complete(Exception error)
at System.ServiceModel.DomainServices.Client.InvokeOperation.Complete(Exception error)
at System.ServiceModel.DomainServices.Client.DomainContext.CompleteInvoke(IAsyncResult asyncResult)
at System.ServiceModel.DomainServices.Client.DomainContext.<>c__DisplayClass30`1.<InvokeOperation>b__2c(Object )
') occurred in iexplore.exe [856].
The Just-In-Time debugger was launched without necessary security permissions. To debug this process, the Just-In-Time debugger must be run as an Administrator. Would you like to debug this process?
[V] View process details [Yes, debug iexplore.exe] [No, cancel debugging]
[Expanded Information]
Process Name: C:\Program Files (x86)\Internet Explorer\iexplore.exe
User Name: Armanx64PC\Armanx64 [Elevated]
I've got solution. My head, it works so strange...
So, you need go to Control Panel - Programs and features - Turn features on or off, and there you must enable ALL WCF Services tree (check ASP.NET also, if you don't check it early).
We're getting errors every so often with a WCF service (consumed by Silverlight) that don't give us much to go on:
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/runs fine whenever I use it via the browser or using the silverlight client. The Silverlight side of the system reports this also equally un-helpful error:
System.ServiceModel.CommunicationException:
[HttpWebRequest_WebException_RemoteServer]Arguments: NotFound
The only lead I've managed to find is possibly changing the instancing behaviour but I'm not sure why we would need to do that, and I can't tell what the default is anyway.
It's hosted on Windows 2008 SP1
The server is behind a load balancer
The timeouts in the web.config for the service are 5 minutes
The maximum object size is 50000000
The services have AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)
Any suggestions would be great
Update
This is another symptom - the Silverlight client frequently sends this exception to our logging service (which writes to the event log + emails)
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)
Is anything in the service modifying the contents of the \bin directory? When hosting under ASP.NET, the ASP.NET runtime will monitor the \bin directory for any changes and, when a change is seen, it will attempt to reinitialize the application so that it picks up whatever changes there might have been.
You should not have anything writing to the \bin directory as part of your service's normal operation. Usually this is a problem with log files being configured to write to the \bin directory rather than a specific directory of their own. If you are unable to write the log files someplace outside the root of your application directory for whatever reason, just write them into a \logs sub-directory and configure ASP.NET to block all access to that directory like so:
<location path="logs">
<system.web>
<authorization>
<deny users="*" />
</authorization>
</system.web>
</location>
A similar problem is reported here: Service activation problem that seems to be related to log files.
Looks like a bug in System.Web. Same issue is reported here: http://connect.microsoft.com/VisualStudio/feedback/details/550511/nullreferenceexception-during-service-compilation.
The jury is still out, but I think you have better chances of getting this issue resolved if you post your details on http://connect.microsoft.com.
We've received the similar error during testing of WCF services, when one of the developers started a deployment of a new version of the service.