Error HRESULT E_FAIL has been returned from a call to a COM component

Question

In Silverlight 4 app; what does this error mean?:

\"Error HRESULT E_FAIL has been returned from a call to a COM component.\"

It

Answer 1

I had this error using the current SL4 Telerik controls. A similar issue has been reported here with a solution ... of sorts. The problem seems to be with the way Expression Blend manages the cache of controls.