Error

Hi: I have installed Freeradius on my Debian server, after I debug, I got this error, can you hep me with this problem. Thank you Samuel Tue Sep 28 13:41:15 2010 : Error: Failed binding to authentication address * port 1812: Address already in use Tue Sep 28 13:41:15 2010 : Error: /usr/local/etc/raddb/radiusd.conf[240]: Error binding to port for 0.0.0.0 port 1812