'EADDRINUSE' node code example
Example 1: EADDRINUSE: address already in use :::5000
sudo lsof -i :3000
Example 2: EADDRINUSE: address already in use
sudo lsof -i :<PORT>
kill -9 <PID>
Example 3: EADDRINUSE: address already in use :::5000
kill -9 {PID}
Example 4: Error: listen EADDRINUSE: address already in use :::31641
ps aux | grep node //gets all the nodes and list of PID
kill -9 {PID}