https://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx?FeedbackID=505636

I am developing a silverlight application that is using a WCF service in my local solution. When I right click on the service reference in the SL application and choose update or if I click configure a duplicate Endpoint and Bindings for the service in my ServiceReferences.ClientConfig file:
     <endpoint address="http://localhost:15153/AdminService.svc" binding="basicHttpBinding"
        bindingConfiguration="BasicHttpBinding_IAdminService" contract="Proxy.AdminService.IAdminService"
        name="BasicHttpBinding_IAdminService" />
     <endpoint address="http://localhost:15153/AdminService.svc" binding="basicHttpBinding"
        bindingConfiguration="BasicHttpBinding_IAdminService1" contract="Proxy.AdminService.IAdminService"
        name="BasicHttpBinding_IAdminService1" />

Posted by Microsoft on 11/16/2009 at 2:52 PM

Dear Customer,
Thanks for reporting the issue.
This issue has been resolved in the latest version of Visual Studio 2010.
Thanks!