listen eaddrinuse address already in use 9000 code example
Example 1: Error: listen EADDRINUSE: address already in use :::3000
sudo lsof -i :3000
Example 2: EADDRINUSE: address already in use :::5000
sudo lsof -i :3000
Example 3: EADDRINUSE: address already in use :::5000
kill -9 {PID}