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
I got this when updating a project that we normally use via NuGet. I thought if I simply copied the updated built dll over to the packages folder I could test it without having to setup NuGet on my machine, but it wasn't that simple because my app was still looking for the old version number. Hope that helps someone out there.