Drupal - Drush needs a higher bootstrap level to run

This particular error happens when drush cannot find the settings.php file to read in and "bootstrap" itself.

You need to cd into the drupal directory (Document root) of your drupal install in order for it to read in a settings.php file.

For that error: Drush needs a higher bootstrap level to run

Write on your terminal: mysql

if you see something that:

Unknown command 'mysql'

Then the problem comes from mysql, that's why your drush commands don't work.

Install MySql by Brew: https://brew.sh

Brew install mysql