Sorry if the Title is a little vague but the truth is I do not understand my problem, I have never come across this before and I havent done anything out of the Ordinary.
Right I have a basic Silverlight 4 Application using the Business Application Template. I have also created a WCF Service Application Project which is used to simply return an Observable collection for some entries in my Database,
I published this to my Local computer which I then referenced in my SL4 app and I get this exception
[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. <EndGetResponse>b__4(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.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 RMServiceRIA.rService.Service1Client.Service1ClientChannel.EndgetBuildings(IAsyncResult result)
at RMServiceRIA.rService.Service1Client.RMServiceRIA.rService.IService1.EndgetBuildings(IAsync Result result)
at RMServiceRIA.rService.Service1Client.OnEndgetBuildings(IAsyncResult result)
at System.ServiceModel.ClientBase`1.OnAsyncCallCompleted(IAsyncResult result)}
I have got a clientaccess policy and crossdomain policy which for the purpose of testing is set to allow anything access,
Client Access Policy
Cross Domain
any ideas on how to fix this problem, I debugged my WCF Service and it receives the call, the method executed reaches its return statement, yet my SL4 never even receives the result, as soon as my WCF service has the result I get an exception thrown within my SL4 app, to me it just seems that the connection gets closed but I dont know and I have tried to research but where do you start with something you dont fully understand? I found many people with the same sort of error message but WCF is so damn cryptic... I did try and enable the debugging information inside of my webconfig. I have also tried to host the WCF service on my Web server but no luck, I have several WCF Services running on that with a similar set up so I am unsure why this isnt working
Web Config for WCF Service
client config
Thanks for having a look, and if you need any more info just ask I'll be happy to provide you with it,
Your best bet is to turn on WCF Tracing so you can see what is going on.
http://software.intel.com/en-us/blogs/2010/02/03/adventures-with-silverlight-and-wcf-the-remote-server-returned-an-error-notfound/
Most likely there is an issue with serializing something. Not found is just the Silverlight version of a 500 error.
Related
So I've written a sync function using the low level sdk calls and I'm getting errors sometimes. not always, it seems to be after its been syncing for aroun 20 or 30 mins. I'm uploading about 30gb of data so it takes a while. If i do it in a linear fashion its okay, but I'm running it in a big Parallel.For loop. Anyway, here is the error:
`
Amazon.S3.AmazonS3Exception: The difference between the request time and the current time is too large. ---> Amazon.Runtime.Internal.HttpErrorResponseException: The remote server returned an error: (403) Forbidden. ---> System.Net.WebException: The remote server returned an error: (403) Forbidden.
at System.Net.HttpWebRequest.EndGetResponse (System.IAsyncResult asyncResult) [0x00058] in <ef151b6abb5d474cb2c1cb8906a8b5a4>:0
at System.Threading.Tasks.TaskFactory`1[TResult].FromAsyncCoreLogic (System.IAsyncResult iar, System.Func`2[T,TResult] endFunction, System.Action`1[T] endAction, System.Threading.Tasks.Task`1[TResult] promise, System.Boolean requiresSynchronization) [0x0000f] in <eae584ce26bc40229c1b1aa476bfa589>:0
`
I thought at first that perhaps some of the files were timing out or something but from reading into the error it looks like its a syncing issue. I found this documentation: https://docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/windows-set-time.html#windows-configuring-ntp which gives advice on how to configure NTP on widows using w32tm. I have no idea what any of this means but it seems to be a way to keep the time in sync which I would assume fixes my error. I've followed the configuration step w32tm /config /manualpeerlist:169.254.169.123 /syncfromflags:manual /update and started Windows Time in the Services window.
I'm still getting the error when uploading, and when I run w32tm /query /sourceI get this response:
"Local CMOS Clock".
Help I'm very confuse
I have a web API(service) whose target framework is .net core 2.0.
This service is calling a custom identity server 4 endpoint using HttpClient by using the 'using' statement. This call always works fine on the development/UAT server.
But on all production servers, it fails intermittently and throws the following exception:
One or more errors occurred. (An error occurred while sending the
request.) Exception: System.AggregateException: One or more errors
occurred. (An error occurred while sending the request.) --->
System.Net.Http.HttpRequestException: An error occurred while sending
the request. ---> System.Net.Http.WinHttpException: The operation
timed out at
System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at
System.Threading.Tasks.RendezvousAwaitable`1.GetResult() at
System.Net.Http.WinHttpHandler.d__105.MoveNext() ---
End of inner exception stack trace --- at
System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task
task) at
System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1.ConfiguredTaskAwaiter.GetResult()
at
System.Net.Http.HttpClient.d__58.MoveNext()
--- End of inner exception stack trace --- at System.Threading.Tasks.Task`1.GetResultCore(Boolean
waitCompletionNotification) at Get(String a, String b)
I went through related stack-overflow posts, some suggested making HttpClient static as it might throw socket exhaustion error. But I am not getting that error either I am able to reproduce this issue on a development server. I created a console application and called this service 64k times, but still, it worked properly.
How to stop outbound HTTP connections from timing out
Asp.net Core HttpClient has many TIME_WAIT or CLOSE_WAIT connections
Can someone please tell me, what can be the reason for this intermittent error only on the production server or is there any way I can reproduce this issue on the dev server. I have tried by making many calls to service, but still unable to reproduce the error.
Our WCF client normally invokes a web service. All deployments of the client invoke the same web service. In most deployments it makes the call without any issues, except in one instance it reports the following exception:
System.Net.Http.HttpRequestException: An error occurred while sending the request. ---> System.Net.WebException: The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel. ---> System.Security.Authentication.AuthenticationException: The remote certificate is invalid according to the validation procedure.
at System.Net.TlsStream.EndWrite(IAsyncResult asyncResult)
at System.Net.PooledStream.EndWrite(IAsyncResult asyncResult)
at System.Net.ConnectStream.WriteHeadersCallback(IAsyncResult ar)
--- End of inner exception stack trace ---
at System.Net.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult)
at System.Net.Http.HttpClientHandler.GetResponseCallback(IAsyncResult ar)
--- End of inner exception stack trace ---
What could be different with this one installation?
We tested the URL that the client uses to make the call to the web service in the browser. The web service returns a response ok in Firefox but not in IE.
Have you seen this article yet? It contains fairly good tips for troubleshooting these issues: http://blogs.msdn.com/b/jpsanders/archive/2009/09/16/troubleshooting-asp-net-the-remote-certificate-is-invalid-according-to-the-validation-procedure.aspx?Redirected=true
For example, you'll need to check that the particular machine has all the root and intermediate certificates properly deployed.
I found the solution - there was a new web service server certificate installed with SHA256 and Windows 2003 Server requires a hotfix to support it:
http://support.microsoft.com/kb/938397
I have WCF service which is returning data of 6500 rows of data list. When I am trying to retrieve that data from service it is throwing error like -
An error occurred while receiving the HTTP response to http://myservice.myDomain.com/Services/myTestService.svc. This could be due to the service endpoint binding not using the HTTP protocol. This could also be due to an HTTP request context being aborted by the server (possibly due to the service shutting down). See server logs for more details
I have tried to increase the time in configuration still the issue persists.
in Trace I am getting same like below :
Trace log it is showing the error like the same below :
An error occurred while receiving the HTTP response to http://myservice.myDomain.com/Services/myTestService.svc. This could be due to the service endpoint binding not using the HTTP protocol. This could also be due to an HTTP request context being aborted by the server (possibly due to the service shutting down). See server logs for more details.
stack Trace:
System.ServiceModel.Channels.HttpChannelUtilities.ProcessGetResponseWebException(WebException webException, HttpWebRequest request, HttpAbortReason abortReason)
System.ServiceModel.Channels.HttpChannelFactory`1.HttpRequestChannel.HttpChannelRequest.WaitForReply(TimeSpan timeout)
System.ServiceModel.Channels.RequestChannel.Request(Message message, TimeSpan timeout)
System.ServiceModel.Dispatcher.RequestChannelBinder.Request(Message message, TimeSpan timeout)
System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
The first thing you should do is set up and start using the service trace viewer tool, this will allow you to drill further down into the specific call and find out exactly what the error is.
http://msdn.microsoft.com/en-us/library/ms732023(v=vs.110).aspx
http://msdn.microsoft.com/en-us/library/ms751526(v=vs.110).aspx
Once you get this up and running you can run your code and then view the specific error you are getting, this will quite often be able to tell you what field or object is causing the error. The error you are getting in your debug is just a sign that something failed, you need to use a trace viewer to see what.
Without the actual error from the logging, it's hard to say exactly what is causing the error, however the most common cause is a lack of proper serialization on the object being returned by the service.
EDIT:
Looking at your stack trace it looks like you may have a cyclical reference somewhere in the object being returned, you'll need to add the IsReference=true flag to the offending objects http://msdn.microsoft.com/en-us/library/system.runtime.serialization.datacontractattribute.isreference(v=vs.95).aspx
If you can post the code for the object(s) being returned I may be able to better point you at the issue.
EDIT 2: Also, if you can post the XML for the exception in the svclog file (copy the contents of the XML tabl in the Service trace viewer), that would shed further light also.
I'm trying to consume a WF Service hosted in IIS express (xamlx) from a Silverlight Client.
I added my service reference and when I use the client proxy, I get this:
System.ServiceModel.CommunicationException was unhandled by user code
Message=An error occurred while trying to make a request to URI 'http://localhost:52878/Workflows/PerformanceAppraisal/Exempt.xamlx'. This could be due to attempting to access a service in a cross-domain way without a proper cross-domain policy in place, or a policy that is unsuitable for SOAP services. You may need to contact the owner of the service to publish a cross-domain policy file and to ensure it allows SOAP-related HTTP headers to be sent. This error may also be caused by using internal types in the web service proxy without using the InternalsVisibleToAttribute attribute. Please see the inner exception for more details.
StackTrace:
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 CompanyHR.ExemptPAService.ExemptPAClient.ExemptPAClientChannel.EndInitiatePerformanceAppraisal(IAsyncResult result)
at CompanyHR.ExemptPAService.ExemptPAClient.CompanyHR.ExemptPAService.IExemptPA.EndInitiatePerformanceAppraisal(IAsyncResult result)
at CompanyHR.ExemptPAService.ExemptPAClient.OnEndInitiatePerformanceAppraisal(IAsyncResult result)
at System.ServiceModel.ClientBase`1.OnAsyncCallCompleted(IAsyncResult result)
InnerException: System.Security.SecurityException
Message=""
StackTrace:
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)
InnerException: System.Security.SecurityException
Message=Security error.
StackTrace:
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)
InnerException:
When I added the service reference I didn't use http://localhost:52878/Workflows/PerformanceAppraisal/Exempt.xamlx
I used the https version of that. But it seems to be using this url instead.
I am using IIS Express in visual studio 2010.
The error message is quite clear about not being able to find a clientaccesspolicy.xml. This is the result of calling a service on a different site then the Silverlight app is running. You didn't mention the URL to the Silverlight app but it could either be the case of that using HTTPS or being a different site altogether.