XAMPP: Another web server is already running
**Running Server on Linux Ubuntu **
In my case Nginx server is already running that's why i am getting this kind of error.
I stop the Nginx Web server first then start Apache server.
Stop Nginx server
sudo systemctl stop nginx
Start Apache Server
sudo /opt/lampp/lampp start
Must Read
Sometimes it can be port conflict between web servers. Changing the port number of both server or maybe one server we can run both servers at a time.
I had to stop all the services,
$sudo /etc/init.d/apache2 stop
$sudo /etc/init.d/mysql stop
$sudo /etc/init.d/proftpd stop
Then I restarted the server
sudo /opt/lampp/lampp restart