Error: listen EADDRINUSE: address already in use :::3000 at Server.setupListenHandle [as _listen2] (net.js:1318:16) 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 :::3000

ps aux | grep node
kill -9 PID