ContractFilter inadéquation à la EndpointDispatcher?

Ici, je suis à l'appel de la méthode de l'hébergé de service RESTful dans mon navigateur

https://eshop/LinkService/LinkService.svc/GetStudentObj

et d'obtenir l'erreur suivante

The message with Action '' cannot be processed at the receiver, due to a ContractFilter mismatch at the EndpointDispatcher. This may be because of either a contract mismatch (mismatched Actions between sender and receiver) or a binding/security mismatch between the sender and the receiver. Check that sender and receiver have the same contract and the same binding (including security requirements, e.g. Message, Transport, None)

Fichier de Config

<system.serviceModel>
    <services>
      <service name="LinkService.LinkService" behaviorConfiguration="MyServiceBehavior">
        <endpoint address="" binding="webHttpBinding" bindingConfiguration="https" contract="LinkService.ILinkService" />
    <endpoint contract="IMetadataExchange" binding="mexHttpsBinding" address="mex" />
      </service>
    </services>
    <bindings>
      <webHttpBinding>
        <binding name="https">
          <security mode="Transport">
            <transport clientCredentialType="None" />
          </security>
        </binding>
      </webHttpBinding>
    </bindings>
    <behaviors>
      <serviceBehaviors>
        <behavior name="MyServiceBehavior">
          <!-- To avoid disclosing metadata information, set the value below to false and remove the metadata endpoint above before deployment -->
          <serviceMetadata httpGetEnabled="false" httpsGetEnabled="true"/>
          <!-- To receive exception details in faults for debugging purposes, set the value below to true.  Set to false before deployment to avoid disclosing exception information -->
          <serviceDebug includeExceptionDetailInFaults="true"/>
        </behavior>
      </serviceBehaviors>
      <endpointBehaviors>
        <behavior name="web">
          <webHttp/>
        </behavior>
      </endpointBehaviors>
    </behaviors>
<serviceHostingEnvironment aspNetCompatibilityEnabled="false" multipleSiteBindingsEnabled="true"/>
    <standardEndpoints>
      <webHttpEndpoint>
        <standardEndpoint name="" helpEnabled="true" automaticFormatSelectionEnabled="true"/>
      </webHttpEndpoint>
    </standardEndpoints>
  </system.serviceModel>

et

   public Student GetStudent()
        {
            Student stdObj = new Student
            {
                StudentName = "Bala",
                Age = 29,
                Mark = 95
            };
            return stdObj;

        }

et

 [ServiceContract]
    public interface ILinkService
    {
        [OperationContract]
        [WebInvoke(Method = "GET", UriTemplate = "/GetStudentObj", BodyStyle = WebMessageBodyStyle.Bare, RequestFormat = WebMessageFormat.Json,ResponseFormat = WebMessageFormat.Json)]
        Student GetStudent();
    }

Toute suggestion?

OriginalL'auteur bala3569 | 2013-03-06