listen EADDRINUSE: address already in use :::8081. Run CLI with --verbose flag for more details. code example

Example 1: Error: listen EADDRINUSE: address already in use :::9000

step-1 Enter commond to see running ports & processes
ps -ef
step-2 To stop port and processes
sudo kill {PID}

Example 2: Error: listen EADDRINUSE: address already in use :::3000

ps aux | grep node
kill -9 PID