Mysql server on MAMP won't start

Question

My Mysql server on MAMP won\'t start. This is the error:

161224 00:15:00 mysqld_safe Logging to \'/Applications/MAMP/logs/mysql_error_log.err\'. 16

Answer 1

I killed the process mysqlid via Activity Monitor on MacOS and restarted MAMP and MySql run successfully.

Update: Even this solution works without restarting MAMP.