Using the latest source drop (pre-preview 3?), I'm getting the following exception:

The ViewUserControl '' cannot find an IViewDataContainer. The ViewUserControl must be inside a ViewPage, ViewMasterPage, or another ViewUserControl.

This is occuring on a ViewUserControl<MyViewData> on a ViewMasterPage<MyViewData> (rendering a ViewPage<MyData>). It happens if I add it as a normal user control or use the Html.RenderUserControl() helper method (MyViewData is just a class with a few properties).

 How should I be doing this?