Another web server daemon is already running (XAMPP).

Avinash Kumar October 21, 2019

To solve the problem follow the steps given below:

use command: $ sudo rm /opt/lampp/logs/httpd.pid

get pid using command: $ sudo netstat -nap | grep :80

example of output: tcp6 0 0 :::80 :::* LISTEN 14417/httpd . here PID is 14417

kill the process using command: $ sudo kill 14417

Restart lampp server using commnad: $ sudo /opt/lampp/lampp restart.