Hey Brad, Any idea what could be causing an error like this? Method not found: 'System.Collections.Generic.IDictionary`2 System.Web.Mvc.ModelBindingContext.get_ValueProvider()' Happens on line 82 of you code which is just a closing brace... I cannot seem to debug the DataAnnotationsModelBinder class because it runs AOP but I'm passing in a very simple model to the Create ActionResult POST method and getting this as it tries to validate the instance of the model coming in from the post. Any clues?