Unable to load metadata for return type '[Service.Classname]' of method '[Service.Classname]' Method RSS

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  JamesRob

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  Unable to load metadata for return type '[Service.Classname]' of method '[Service.Classname]' Met...

  Dec 13, 2011 12:19 PM|LINK

  Hi I am getting below error after adding a class BO.ContentList in the data aservice which retrns content details with a list of tag's
  if i comment the method which is using this class, the data service works fine . please help me ....
   
  The server encountered an error processing the request.
   The exception message is
  'Unable to load metadata for return type 'WhatsNewAtDataService.BO.ContentList'
  of method 'WhatsNewAtDataService.BO.ContentList GetContentWithTags(Int32)'.'.
  See server logs for more details. The exception stack trace is:

  at System.Data.Services.Providers.BaseServiceProvider.AddServiceOperation(MethodInfo method, String protocolMethod) at System.Data.Services.Providers.BaseServiceProvider.AddOperationsFromType(Type type) at System.Data.Services.DataService`1.CreateProvider() at System.Data.Services.DataService`1.HandleRequest() at System.Data.Services.DataService`1.ProcessRequestForMessage(Stream messageBody) at SyncInvokeProcessRequestForMessage(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