listen EADDRINUSE: address already in use 127.0.0.1:2101 code example
Example 1: listen EADDRINUSE: address already in use 127.0.0.1:8000
sudo lsof -i :3000
Example 2: listen EADDRINUSE: address already in use 127.0.0.1:8000
kill -9 {PID}
sudo lsof -i :3000
kill -9 {PID}