Error: connect ECONNREFUSED 127.0.0.1:3000 in docker container code example
Example 1: address already in use :::3000
lsof -i:3000
kill -9 [PID]
Example 2: Error: listen EADDRINUSE: address already in use :::3000
ps aux | grep node
kill -9 PID
lsof -i:3000
kill -9 [PID]
ps aux | grep node
kill -9 PID