How to kill a node process that ended incorrectly?

Question

Node.js

I went through 10 different options. I list some:
1. ps -A, then kill #processes one by one (there were several nodes)
2. killall node
3. pkill node
4. pkill -f node
Nothing changes. Still on application startupError: listen EADDRINUSE :::3090

Answer 1

Run the command fuser -k 3090/tcp this will kill the application that is using your port.