Posted By: Mike Taulty | Jul 25th @ 3:38 AM
Building a basic Silverlight client for an ADO.NET Data Service.
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Hi, I followed the tutorial and tried to apply on my database, but when i create the proxy with
     proxy = new testingEntities(new Uri("http://localhost:3702/Service1.svc"));
i get a very ugly error which i don't know how to solve it:

 base {System.SystemException} = {System.NotSupportedException: the method specified is not supported.

to System.Data.Services.Client.DataServiceQuery`1.System.Collections.Generic.IEnumerable<TElement>.GetEnumerator()

to System.Linq.SystemCore_EnumerableDebugView`1.get_Items()}

Any suggestions?
Although I've not seen this screencast I'm having the same problem. Did you finad a solution yet?