I have a simple test application following the directions from
http://msdn.microsoft.com/en-us/library/dd465159.aspx . When I attempt to drag the data source onto the design surface I get the following error:
Cannot add the control to the design surface or bind to the control because the type TestApp.AdventureWorksEntities cannot be resolved. Please try to build the project or add necessary assembly references.
The project as been built and the data source is in the same namespace. I did a search for this error and the only hit I found was here, and mentioned Tools->Options->Extension Manager, 'Load per use extensions...'. This option is checked.
I've tried unchecking and restarted with the same behavior.
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