how to release localhost from Error: listen EADDRINUSE

Question

i am testing a server written in nodejs on windows 7 and when i try to run the tester in the command line i get the following error

Error: listen EADDRINUSE
         


        

Answer 1

use below command to kill a process running at a certain port - 3000 in this example below

kill -9 $(lsof -t -i:3000)