Build Problem

The type or namespace name 'ISecurity' could not be found (are you missing a using directive or an assembly reference?)
The type or namespace name 'MediatorBase' could not be found (are you missing a using directive or an assembly reference?)
The type or namespace name 'Order' does not exist in the class or namespace 'Pcc.K2.BusinessLogic' (are you missing an assembly reference?)
The type or namespace name 'WorkspaceViewBase' could not be found (are you missing a using directive or an assembly reference?)

Build Configuration had "BusinessFacade.Interfaces" set to not comple, along with a bunch of other projects.