how to stop usage of a port code example
Example 1: windows kill port
netstat -ano | findstr :3001
taskkill /PID <yourid> /FExample 2: stop port
kill -9 $(sudo lsof -t -i:'portName')
//Ex. if portname is 3000
//then we will execute "kill -9 $(sudo lsof -t -i:3000)"