I am running the movies tutorial - but I am running it from vs 2010 rather than web matrix and am getting this error.  I have been going merrily on for a while - this is my first show stopper here .  Any ideas ?


Don




Compiler Error Message: CS0117: 'System.Web.Helpers.Validation' does not contain a definition for 'RequireField'

Source Error:


Line 1: @{ Line 2: Line 3: Validation.RequireField("title", "You must enter a title"); Line 4: Validation.RequireField("genre", "Genre is required"); Line 5: Validation.RequireField("year", "You haven't entered a year"); ...

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