Это работает,
Может быть, вы находитесь позади или указываете на частный репозиторий или корпоративный прокси-сервер?
dev npm install scheduler
npm WARN saveError ENOENT: no such file or directory, open '/Users/user/dev/package.json'
npm notice created a lockfile as package-lock.json. You should commit this file.
npm WARN enoent ENOENT: no such file or directory, open '/Users/user/dev/package.json'
npm WARN dev No description
npm WARN dev No repository field.
npm WARN dev No README data
npm WARN dev No license field.
+ scheduler@0.13.4
added 4 packages from 3 contributors and audited 4 packages in 1.66s
found 0 vulnerabilities