I upgraded an application to the RTM version of Silverlight 5 and now when I try to RegisterCallback for my save interceptor, I get an error from the server. All I did was change to SL5.

 

{IdeaBlade.EntityModel.EntityServerConnectionException: Communications with the service 'sl-NotificationService_Local' using Uri of 'http://localhost/EntityServer_Local.svc/sl-NotificationService cannot be started.  See the internal exception for more information. ---> System.IO.FileNotFoundException: Could not load file or assembly 'System.ServiceModel.NetTcp, Version=2.0.5.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.
   at IdeaBlade.EntityModel.PushFns.GetDefaultSilverlightPushBinding(String scheme)
   at IdeaBlade.EntityModel.DuplexProxy`2.GetBinding(String scheme)
   at IdeaBlade.EntityModel.WcfProxy`1.CreateProxyCore()
   --- End of inner exception stack trace ---
   at IdeaBlade.EntityModel.AsyncProcessor`1.<>c__DisplayClass2.<.ctor>b__0(TArgs args)
   at IdeaBlade.EntityModel.AsyncProcessor`1.Signal()
   at IdeaBlade.EntityModel.AsyncProcessor`1.PreActionCancelled()
   at IdeaBlade.EntityModel.AsyncProcessor`1.Execute()
   at IdeaBlade.EntityModel.EntityManager.<>c__DisplayClassc8`1.<DoAsyncRequest>b__c5()
   at IdeaBlade.EntityModel.EntityManager.DoAsyncAction(Action action)
   at IdeaBlade.EntityModel.EntityManager.DoAsyncRequest[TArgs](AsyncProcessor`1 processor)
   at IdeaBlade.EntityModel.EntityManager.RegisterCallbackAsyncCore(AsyncProcessor`1 processor)
   at IdeaBlade.EntityModel.EntityManager.RegisterCallback(String serviceTypeName, String serviceMethodName, Action`1 callback, Object userToken, Object[] clientArgs)
   at MyApp.Repository.DomainModelRepository.RegisterMyAppCallback(String owToken)
   at MyApp.ViewModels.ShellViewModel.SubscribeToCallback()
   at MyApp.ViewModels.ShellViewModel.OnLoginChanged(LoginChangedEvent args)}

 

 

We're able to reproduce the issue here and are currently investigating. I'll keep you updated.

On your Silverlight app, please ensure that you have referenced the System.ServiceModel.NetTCP v5.0.5 and on your web project, System.ServiceModel.PollingDuplex which can be found in C:\Program Files (x86)\Microsoft SDKs\Silverlight\v5.0\Libraries\Server\System.ServiceModel.PollingDuplex.dll

We've found that when upgrading Silverlight 4 apps to Silverlight 5, some assemblies require to be explicitly referenced. If not, the Silverlight 4 assemblies will end up being implicitly referenced.

 

Thanks that worked.

 

I had changed the PollingDuplex reference in my web project but I've never had the System.ServiceModel.NetTcp referenced before in my Silverlight 4 app.

 

Kr

George