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I have been experiencing this issue when trying to get my WCF service running. Any help will be highly appreciated.

The server encountered an error processing the request. The exception message is 'Object reference not set to an instance of an object.'.

See server logs for more details. 
The exception stack trace is:
at System.Data.Services.Providers.ObjectContextServiceProvider.PopulateMetadata(ProviderMetadataCacheItem metadataCacheItem) 
at System.Data.Services.Providers.BaseServiceProvider.LoadMetadata(Boolean skipServiceOperations) 
at System.Data.Services.Providers.EntityFrameworkDataService`1.CreateInternalProvider(Object dataSourceInstance) 
at System.Data.Services.DataService`1.CreateMetadataAndQueryProviders(IDataServiceMetadataProvider& metadataProviderInstance, IDataServiceQueryProvider& queryProviderInstance, Object& dataSourceInstance, Boolean& isInternallyCreatedProvider) 
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)
Felix D.
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Hope Kgomo
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  • Informations are too few... The problem seems due to EntityFrameworkDataService... did you check all connection string to database and their reacheability (ie. for authentication service etc...) – Gianluca Conte Sep 27 '18 at 08:26
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    See that: https://stackoverflow.com/questions/266927/ado-net-data-services-entity-framework-request-error-when-property-setter-is-int – Gianluca Conte Sep 27 '18 at 08:31
  • @GianlucaConte I had a look at the EntityFrameworkDataService and the connectionstring in the solution and all seems to be well. Also had a look at the provided link and followed the suggestions there as well, but to no avail... – Hope Kgomo Sep 27 '18 at 09:46
  • I created the wcf service after I had created my mvc application and the reason for its creation was so that I caould be able to get my application to work with my xamarin.android application, but it seems I only made things worse... – Hope Kgomo Sep 27 '18 at 09:49

0 Answers0