Dialog System Issue in VC 2.2

I am running Visual studio 2012 VC 2.2.  I can open a DS screen in some folders that were done in netexpress, but I have two solutions that if I try to open the .GS file I get the following error:

If I move that .GS file to a different folder that has a different netexpress solution in it, it works, as does all the other .GS in that folder.

What do I have setup wrong?