The type or namespace does not exist

Question

Ok, I have had this one a million times before and it\'s been answered 1 million +1 times before.

And yet, once again. I have 3 projects, A, B, and C, each a DLL. Each

Answer 1

I started getting this error suddenly while trying to solve another problem

I solved this by going to Solution=>properties=>project dependencies and all the dependencies were off for the two projects I was getting a namespace error for. I checked the check boxes and rebuilt the solution with no errors.