I get this error whenever I try to start my server from vps centOS. 182 recipes 27 achievements 08:15:58 [INFO] Starting minecraft server version 1.2.5 08:15:58 [INFO] Loading properties 08:15:58 [INFO] Starting Minecraft server on *:20059 08:15:58 [WARNING] **** FAILED TO BIND TO PORT! 08:15:58 [WARNING] The exception was: java.lang.NoSuchMethodError: method java.net.ServerSocket.setPerformancePreferences with signature (III)V was not found. 08:15:58 [WARNING] Perhaps a server is already running on that port? > ples help! note: I already tried port forwarding.
Type killall -9 java then restart your server. That will kill any java processes running in the background that might be using that port. If that doesn't fix it, a program on your VPS is using it, or the host VPS doesn't have networking setup correctly