I am trying to raise the forest functional level to 2012 and I am getting this error.
I just performed a server upgrade from 2003 to 2012. I transferred all of the FSMO roles to one of the new DCs and all went well. I then ran DCPROMO on the 2003 DC and it seemed to work as well. Any help that you can afford will be greatly appreciated!!
Deric Cain