In the case of magic-script-cli v.2.2.1 or later, this correspondence is not necessary.

Prepare
Magic Leap One
https://www.magicleap.com/magic-leap-one

If you apply the following patch, the error will not occur.

npm bin -g

2.Edit the following file.

GLOBAL PATH\node_modules\magic-script-cli\commands\build.js
(Added shell: true,)

13    const proc = spawn('npm', ['install'], { shell: true, stdio: 'inherit' });

Reference

Thanks!