Error 1 The OutputPath property is not set for project 'Order System Business Objects EF CSharp.csproj'. Please check to make sure that you have specified a valid combination of Configuration and Platform for this project. Configuration='Debug' Platform='HPD'. This error may also appear if some other project is trying to follow a project-to-project reference to this project, this project has been unloaded or is not included in the solution, and the referencing project does not build using the same or an equivalent Configuration or Platform. Order System WPF CSharp

I'm not sure how to handle this one. I check the project's properties and they seem the same.

TIA

Al Allison