Thank you for reaching Telerik support.
In order to help you further, I must note that JustMock does not support profiled mocking for SilverLight applications. So, if your RIA is inside your SL project you will not be able to mock its sealed classes. Nevertheless, we have planned the development of fully profiled SL testing support for the very near future.
However, if the RIA service is in any other kind of .NET project you should be able to mock it, using our product. If this is the case, I would recommend you to check this
article for further assistance about the "Profiler must be enabled" exception.
If the issue still remains, after completing the steps in the knowledge base, we will need you to send us a code sample with the SUT(system under test) and the concrete test that is failing.
Thank you for the understanding and the cooperation in advance.
the Telerik team
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