If I select "Rebuild Solution" I get this:- error C1083: Cannot open include file: 'tcl.h': No such file or directory C:\cpython\Modules\_tkinter.c error C1083: Cannot open include file: 'tcl.h': No such file or directory C:\cpython\Modules\tkappinit.c I'm assuming that this should never happen.
Have you previously run ``build.bat -e`` from the command line? That's the best way to make sure you're ready to work inside VS. (And technically it's allowed to happen, since VS 2013 is not supported and our build can do whatever it likes :) But it should work, so let's figure out why it isn't.)
I've run "build.bat -e" for all four combinations of release and debug with 32 or 64 bit with no problems. Go back to VS and all four combinations fail with this problem.