debugger Uncaught Error: listen EADDRINUSE: address already in use :::4200 No debugger available, can not send 'variables' 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 :::8888

lsof -n -i:5000