cannot run serve

[ikmil]

if npm run serve

Emitted 'error' event on WebSocketServer instance at:
at Server.emit (node:events:526:28)
at emitErrorNT (node:net:1357:8)
at processTicksAndRejections (node:internal/process/task_queues:83:21) {
code: 'EADDRINUSE',
errno: -48,
syscall: 'listen',
address: '::',
port: 9090
}

[chrisshroba]

EADDRINUSE is a standard error meaning you already have something running on that port. You probably tried running npm run serve twice, or you are running something on port 9090 already. If you have absolutely no idea how to figure out what's running on that port, try googling for " what is running on specific port"