Error: There was an error connecting to the server, Please verify the settings are correct.

The dialogue shows:

Hostname – Localhost
Username – admin
Password

Connection Type Connection Type FTP FTPS (SSL)

———

Here’s the fix for me…

If you go to MAMP Pro application’s General tab, put the “Run Apache/MySQL server as user” to your OS X account name, not www/mysql.

Click apply.