How do I fix the black screen showing in the window of game exported with NW.js?

When I installed the latest version of NW.js and tried it with a shooting tutorial capx, I got documents like these and the nw.exe shows a black screen.

Did I miss something? How can I fix the black screen?

Did you set preview browser to NWjs in the project properties? Start the preview and if it shows black screen, press F12 and check if there are any errors in the console log.

Thank you for your advice, kind sir or madam.I started the preview with NW.js and it's a window of black screen. I tried pressing F12 and another window of black screen showed up. Maybe there's something wrong with my pc, idk. I'll get to another pc and try again asap. Thank you.

May be an issue with your graphics card, try updating video drivers.

I installed windows upgate KB2919355 and the problem of black screen is gone. Thank you for all your attention.