If you have trouble where MAMP couldn’t start MySQL and you’re seeing lots of errors like this InnoDB: Unable to lock ./ibdata1, error: 35 in terminal (* are notes, not commands to run) sudo launchctl unload -F /Library/LaunchDaemons/com.oracle.oss.mysql.mysqld.plist * stops the system mysql in case it got started for some reason ps -ef | egrep …