Are you perhaps missing a reference to ABusinessEntity?

>I am stepping through the MM.Net documentation's Jump Start tutorials.
>
>I have completed successfully all of the steps in Creating Entity Framework Business Objects - C#.
>
>I am now creating my first Web form based on the steps found in Web Forms Application - C#
>
>After creating and running the Customer Orders Form I am getting a run time error that I am having difficulty figuring out.
>
>In the Order.Partial.cs file in method GetCustomerOrders I get the following error:
>
>Error Framework object query execution requested, but no Entity Framework data access class has been specified for this business object.
>
>This run-time error occurs at the line of code reading: return this.GetEntityList(query);
>
>I am using VS 2010 with the MM.Net 4.0 framework on a Windows Vista OS.
>
>I checked the value of customerID while debugging the method and it had the correct value "ROMEY".
>Anyone have any idea what this error is telling me?
>
>Full Method listed here is part of the Order class created in Creating Entity Framework Business Objects - C#.:
>
>

>public mmBindingList<OrderEntity> GetOrdersByCustomerID(string customerID)
>{
>        IQueryable<OrderEntity> query = from order in this.ObjectContext.OrderEntities
>                           where order.CustomerID == customerID
>                           select order;
>        return this.GetEntityList(query);
>}
>