グローバルにインストールしているnpmのバージョンをどこに上げるか?

$ npm install --save-dev @vue/cli

npm WARN saveError ENOENT: no such file or directory, open '/Users/Hoge/Desktop/API-JSON-Response/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/Hoge/Desktop/API-JSON-Response/package.json'

npm WARN @vue/compiler-sfc@3.0.2 requires a peer of vue@3.0.2 but none is installed. You must install peer dependencies yourself.

npm WARN API-JSON-Response No description

npm WARN API-JSON-Response No repository field.

npm WARN API-JSON-Response No README data

npm WARN API-JSON-Response No license field.

+ @vue/cli@4.5.8
updated 1 package and audited 2128 packages in 8.365s
found 0 vulnerabilities



   ╭────────────────────────────────────────────────────────────────╮
   │                                                                │
   │       New minor version of npm available! 6.9.0 → 6.14.8       │
   │   Changelog: https://github.com/npm/cli/releases/tag/v6.14.8   │
   │               Run npm install -g npm to update!                │
   │                                                                │
   ╰────────────────────────────────────────────────────────────────╯