include base error

proxy/socks/server_udp.go

@@ -13,7 +13,7 @@ func (v *Server) listenUDP() error {
 	v.udpServer = udp.NewUDPServer(v.packetDispatcher)
 	udpHub, err := udp.ListenUDP(v.meta.Address, v.meta.Port, udp.ListenOption{Callback: v.handleUDPPayload})
 	if err != nil {
-		log.Error("Socks: Failed to listen on udp ", v.meta.Address, ":", v.meta.Port)
+		log.Error("Socks: Failed to listen on udp (", v.meta.Address, ":", v.meta.Port, "): ", err)
 		return err
 	}
 	v.udpMutex.Lock()