kill all ports mac
lsof -n -i TCP:8080 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME node 54762 user 23u IPv4 XXXXXXXXX 0t0 TCP 127.0.0.1:http-alt (LISTEN) PID // is second field in the response . Then, kill that process: kill -9 54762 // here put PID number found on the table 54762