SaveChanges() throws exception: The response to this POST request did not contain a 'location' header. That is not supported by this client.

Question

Hi there,

I'm trying to insert  a new record into 'A160Pedimentos' table.

public void ProcesaDS()
        {
            var proxy = new IntermediaEntities(new Uri("http://myserver/MyDataService.svc/"));

            var pedim = new A160Pedimentos
            {
                fechapago = DateTime.Now,
                clavecliente = "0001",
                firmapago = "FIRma"

            };

            proxy.AddToA160Pedimentos(pedim);
            proxy.SaveChanges(); // Exception here
        }

Problem is... proxy.SaveChanges() throws the following exception:

System.NotSupportedException was unhandled
  Message="The response to this POST request did not contain a 'location' header. That is not supported by this client."
  Source="System.Data.Services.Client"
  StackTrace:
       at System.Data.Services.Client.DataServiceContext.SaveAsyncResult.HandleOperationResponse(HttpWebRequest httpWebRequest, HttpWebResponse response)
       at System.Data.Services.Client.DataServiceContext.SaveAsyncResult.BeginNextChange(Boolean replaceOnUpdate)
       at System.Data.Services.Client.DataServiceContext.SaveChanges(SaveChangesOptions options)
       at System.Data.Services.Client.DataServiceContext.SaveChanges()
       at Pedimentos160.Procesar.ProcesaDS() in C:\Pedimentos160\Procesar.cs:line 121
       at Pedimentos160.Program.Main(String[] args) in C:\Pedimentos160\Program.cs:line 17
       at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)
       at System.AppDomain.nExecuteAssembly(Assembly assembly, String[] args)
       at System.Runtime.Hosting.ManifestRunner.Run(Boolean checkAptModel)
       at System.Runtime.Hosting.ManifestRunner.ExecuteAsAssembly()
       at System.Runtime.Hosting.ApplicationActivator.CreateInstance(ActivationContext activationContext, String[] activationCustomData)
       at System.Runtime.Hosting.ApplicationActivator.CreateInstance(ActivationContext activationContext)
       at System.Activator.CreateInstance(ActivationContext activationContext)
       at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssemblyDebugInZone()
       at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Threading.ThreadHelper.ThreadStart()
  InnerException: 

Can someone please help?

Regards,

-Jorge

Answer 1

Upon further tests I discovered that this error occurs when the service is hosted on my IIS server. If I consume the service when hosted from the Visual Studio integrated web server (localhost) the error does not happen.

Any ideas?

Answer 2

It seems like a server side error. Can you hit the service directly in Fiddler (http://www.fiddler2.com/fiddler2/) and see what the response is?

Regards,

PQ

---

Peter Q. http://blogs.msdn.com/peter_qian

Answer 3

Well, it turns out I had a strange typo in the URI string. Fixed it and problem went away. I'm so ashamed...

Thanks, Peter, for your kind suggestion. Thanks to Fiddler (first time I use it) I discovered the root cause.

Regards,

-Jorge