couldn't start xampp apache at fedora 6 x64!

[hanpedro]

I have logged in as root and install xampp 1.6. However , I couldn't start xampp apache at fedora 6 x64!, and got these messages.

[root@localhost lampp]# /opt/lampp/lampp start
Starting XAMPP for Linux 1.6...
XAMPP: Starting Apache with SSL (and PHP4)...
XAMPP: Error 1! Couldn't start Apache!
XAMPP: Starting diagnose...
XAMPP: Sorry, I've no idea what's going wrong.
XAMPP: Please contact our forum http://community.apachefriends.org/f/
XAMPP: XAMPP-MySQL is already running.
XAMPP: XAMPP-ProFTPD is already running.
XAMPP for Linux started.


Any comment would be appreciated.