我正在尝试使用 brew services start mysql 按照网站说明，但它给了我一个错误：

Formula `mysql` is not installed.

我已经在xampp服务器上进行了完全卸载。
终端：

Dylans-Macbook:~ dylandude$ brew install mysql@5.7
Updating Homebrew...
==> Auto-updated Homebrew!
Updated 1 tap (homebrew/core).
==> Updated Formulae
ansible                    jpeg-turbo                 phplint
ccrypt                     mapcrafter                 skinny
dxpy                       mikutter
jenkins-job-builder        pgcli
Warning: mysql@5.7 5.7.23 is already installed and up-to-date
To reinstall 5.7.23, run `brew reinstall mysql@5.7`
Dylans-Macbook:~ dylandude$ brew services start mysql
Error: Formula `mysql` is not installed.