WCF Service hosted in Azure Cloud Service errors after published - wcf

Question

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.

Answer 1

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....