How to fix Error: listen EADDRINUSE while using nodejs?

Question

If I run a server with the port 80, and I try to use xmlHTTPrequest i get this error: Error: listen EADDRINUSE

Why is it problem for nodejs, if I want t

Answer 1

EADDRINUSE means port of your nodejs app is already in use.

• Now you have kill the process/app running on that port.
• Find the process id of app by:

lsof -i tcp:3000

• Now u will get process id from this.
• Run this:

kill -9 processId