Develop WCF service for netTcpBinding

See more:

WCF

Hi all,
I created one sample project for adding 2 values in WCFService.using NetTcpBinding.After called this service in app.config.I got the following errors while run it

System.InvalidOperationException: The contract name 'ImexServiceInterface' could not be found in the list of contracts implemented by the service 'ServiceClass'.
at System.ServiceModel.Description.ConfigLoader.LookupContract(String contractName, String serviceName)
at System.ServiceModel.Description.ConfigLoader.LoadServiceDescription(ServiceHostBase host, ServiceDescription description, ServiceElement serviceElement, Action`1 addBaseAddress)
at System.ServiceModel.ServiceHostBase.LoadConfigurationSectionInternal(ConfigLoader configLoader, ServiceDescription description, ServiceElement serviceSection)
at System.ServiceModel.ServiceHostBase.ApplyConfiguration()
at System.ServiceModel.ServiceHostBase.InitializeDescription(UriSchemeKeyedCollection baseAddresses)
at System.ServiceModel.ServiceHost.InitializeDescription(Type serviceType, UriSchemeKeyedCollection baseAddresses)
at System.ServiceModel.ServiceHost..ctor(Type serviceType, Uri[] baseAddresses)
at Microsoft.Tools.SvcHost.ServiceHostHelper.CreateServiceHost(Type type, ServiceKind kind)
at Microsoft.Tools.SvcHost.ServiceHostHelper.OpenService(ServiceInfo info)


Thanks in advance