I got into work this morning and made some changes to our app. When I tried to run I got the error below. I was able to run Friday when I left the office and the changes I made were view - viewmodel level, not framework level. In light of that dont know where to start to figure this out. 

I am not sure what I did. If someone had some idea of where to start looking it would be much appreciated. 

Webpage error details

User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E; Zune 4.7)

Timestamp: Mon, 10 Jan 2011 19:35:49 UTC

Message: Unhandled Error in Silverlight Application 

Code: 4004    

Category: ManagedRuntimeError       

Message: EntityServerException: Constructor on type 'IdeaBlade.EntityModel.EntityManager' not found. ---> System.MissingMethodException: Constructor on type 'IdeaBlade.EntityModel.EntityManager' not found.

   at System.RuntimeType.CreateInstanceImpl(BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes)

   at System.Activator.CreateInstance(Type type, BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes)

   at System.Activator.CreateInstance(Type type, Object[] args)

   at IdeaBlade.EntityModel.Server.EntityServer.ConstructEntityManager(SessionBundle bundle, Type emType)

   at IdeaBlade.EntityModel.Server.EntityServer.InvokeServerMethod(SessionBundle sessionBundle, ITypeWrapper entityManagerType, String typeName, String methodName, Object[] args)

   at SyncInvokeInvokeServerMethod(Object , Object[] , Object[] )

   at System.ServiceModel.Dispatcher.SyncMethodInvoker.Invoke(Object instance, Object[] inputs, Object[]& outputs)

   at System.ServiceModel.Dispatcher.DispatchOperationRuntime.InvokeBegin(MessageRpc& rpc)

   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage5(MessageRpc& rpc)

   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage41(MessageRpc& rpc)

   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage4(MessageRpc& rpc)

   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage31(MessageRpc& rpc)

   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage3(MessageRpc& rpc)

   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage2(MessageRpc& rpc)

   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage11(MessageRpc& rpc)

   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage1(MessageRpc& rpc)

   at System.ServiceModel.Dispatcher.MessageRpc.Process(Boolean isOperationContextSet)

   at IdeaBlade.EntityModel.CoroutineOperation.HandleError(INotifyCompletedArgs notifyCompletedArgs)

   at IdeaBlade.EntityModel.CoroutineOperation.OnCompleted(INotifyCompletedArgs notifyCompletedArgs)

   at IdeaBlade.EntityModel.CoroutineSerialProcessor.HandleCompletedAndProcessNext(INotifyCompletedArgs args)

   at IdeaBlade.EntityModel.BaseOperation.BaseOnCompleted()

   at IdeaBlade.EntityModel.BaseOperation`2.OnCompleted()

   at IdeaBlade.EntityModel.BaseOperation`2.IdeaBlade.EntityModel.IHasAsyncEventArgs.OnCompleted()

   at IdeaBlade.EntityModel.AsyncProcessor`1.<>c__DisplayClass2.<.ctor>b__0(TArgs args)

   at IdeaBlade.EntityModel.AsyncProcessor`1.Signal()

   at IdeaBlade.EntityModel.AsyncProcessor`1.<Execute>b__5(Object x)     

Line: 56

Char: 13

Code: 0

URI: http://localhost:53667/RunRepositoriesTests.aspx

Thanks for posting your solution. Could you post the CompositionContext code snippet that fails? I need to find out whether this is a bug or not.

Thanks!