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

Seems there is another Node ng serve process running. Check it by typing this in your console (Linux/Mac):

ps aux|grep node

and quit it with:

kill -9 

OR alternativley use

ng serve --port 

to serve your project on a free port of you choice.