Error: listen EADDRINUSE: address already in use :::4567 code example
Example 1: Error: listen EADDRINUSE: address already in use :::3000
sudo lsof -i :3000
Example 2: Error: listen EADDRINUSE: address already in use
Find server pid:
lsof -i tcp:5000 (the 5000 is the port number)
kill the server:
kill -9 111119 (the 111119 is the pid)