We know it's pretty complex to properly add references to DataObjects.Net from your projects. The only solution we offer now is project templates, that are availabe after installation. But much better solution is on the way:
This tool will be fully ready in few days. It is capable of applying necessary options to .csproj/.vbproj and upgrading old-style references to the most current style.
So hopefully, this will remove a part of initial complexity related to usage of DataObjects.Net.