I need some hints in tracking down the following errors.
In Jumpstart Windows Forms App Step 2 while building the Solution I get the following errors:

1. the statement:
using Acme.OrderSystem.Business; in SecuritySetupForm.cs

causes

C:\MM.net\Windows Projects\Order System CSharp\SecuritySetupForm.cs(8): The type or namespace name 'Business' does not exist in the class or namespace 'Acme.OrderSystem' (are you missing an assembly reference?)


2. This statement in OrderDetailDataAccessSql.cs

protected override mmDataAccessBase CreateDataAccessObject(string dataAccessClassName)

causes this warning in the build

C:\MM.net\Business Objects\Order System Business Objects CSharp\Order System Business Objects CSharp\OrderDetailDataAccessSql.cs(95): 'Acme.OrderSystem.Business.OrderDetailDataAccessSql.CreateDataAccessObject(string)': no suitable method found to override