socket Error: listen EADDRINUSE: address already in use :::4000 code example
Example 1: Error: listen EADDRINUSE: address already in use :::3000
sudo lsof -i :3000
Example 2: Error: listen EADDRINUSE: address already in use :::3000
C:\Windows\System32>taskkill /F /IM node.exe
SUCCESS: The process "node.exe" with PID 11008 has been terminated.