Compile file menu grayed(not active)

I develop new vc++ application type (like Android and Linux) for VS. I already wrote my dll for compile, link and lib tasks, of course i wrote all props and targets(and MyAppType.Makefile.targets too with ProjectItemsSchema.xml included) files and xml sheets. All works just fine. But compile command of single file menu is grayed(not active). 

What should I do to activate it?