在ubuntu中启动XAMPP时如何解决这个ProFTPD...fail问题？
sudo /opt/lampp/lampp start <br>
sudo: unable to resolve host ubuntu16-04-lts<br>
Starting XAMPP for Linux 7.3.11-0...<br>
XAMPP: Starting Apache...already running.<br>
XAMPP: Starting MySQL...already running.<br>
XAMPP: Starting ProFTPD...fail.<br>
Contents of "/opt/lampp/var/proftpd/start.err":<br>
ubuntu16-04-lts proftpd[4255]: warning: unable to determine IP address of 'ubuntu16-04-lts'<br>
ubuntu16-04-lts proftpd[4255]: error: no valid servers configured<br>
ubuntu16-04-lts proftpd[4255]: Fatal: error processing configuration file '/opt/lampp/etc/proftpd.conf'