In working through the Northwind Demo I get the following error:

Error 20 The type or namespace name 'PropertyInfo' could not be found (are you missing a using directive or an assembly reference?) D:\NorthwindDemo\NorthwindDemo.BusinessLayer\BL Classes\BLOrder.Designer.cs 63 24 NorthwindDemo.BusinessLayer

I also get this error for SingleCriteria.

It looks that you have chosen CSLA 3.5 for the target framework but your projects have a reference to CSLA 3.0. You need to make sure that the references to your projects in the project settings configuration screen correspond to the target framework in the solution configuration screen.

Regards

Philip

Thanks for the reply