【babel】これ出たら「You have mistakenly installed the `babel` package, which is a no-op in Babel 6.」
babel --version でbabelの確認をしたら出た文言です。
@babel/cli · Babel
Babel comes with a built-in CLI which can be used to compile files from the command line.
hit run command
npm uninstall --global babel-cli
package.jsonが変わったことを確認