Thanks for answering
these are the step i use to compile:
> qmake MyGame.pro -spec win32-msvc "CONFIG+=debug"
> jom -f Makefile qmake_all
> jom -j4
my game is based on qt environment, qt has msvc and ming environment setups...
i execute setting for msvc 2019...
May I need to use nmake rather than jom?