Estou tendo problema com o meu xampp quando vou ativar o mysql

quando vou ativar o mysql da este tipo de erro
Problem detected!
22:09:39 [mysql] Port 3306 in use by “Unable to open process”!
22:09:39 [mysql] MySQL WILL NOT start without the configured ports free!
22:09:39 [mysql] You need to uninstall/disable/reconfigure the blocking application
22:09:39 [mysql] or reconfigure MySQL and the Control Panel to listen on a different port