Missing boxfile

[Magdalena851]

Missing boxfile. How can I fix it? I'm running windows 10

[lunacd]

You can fix that by simply adding a boxfile, whose use and structure are well addressed here:
https://docs.nanobox.io/boxfile/.
Also, if you look into the following page, you could see more stack-specific instructions and examples:
https://guides.nanobox.io/