nodemon giving this error code: 'EADDRINUSE', errno: -4091, syscall: 'listen', address: '::', port: 5000

Question

Emitted 'error' event on Server instance at:
    at emitErrorNT (net.js:1347:8)
    at processTicksAndRejections (internal/process/task_queues.js:82:21) {
  code: 'EADDRINUSE',
  errno: -4091,
  syscall: 'listen',
  address: '::',
  port: 5000
}
[nodemon] app crashed - waiting for file changes before starting...

Answer 1

Having the same problem but I have 3 fixes for this you can use any

• 1. a permanent and long way:

  • i. Install the kill-port node package as a dev dependency:

     npm install kill-port --save-dev

  • ii. Create a nodemon.json file in the root of your project containing:

     { "events": { "restart": "kill-port 5000", "crash": "kill-port 5000" }, "delay": "1500" }

  • iii. Then, in your package.json file, have something like this:

     "scripts": { "start-dev": "nodemon app.js", }

  • iv. Then start your app in dev mode with:

     npm run start-dev

• 2. Manually kill from the system(easy fix):

  directly kill the port with the following command.

   fuser -n tcp -k 5000

• 3. Restarting the system:

  • restarting the project
  • restarting the computer

Answer 2

for windows

netstat -ano | findstr : 5000
(output : TCP 0.0.0.0:8080 0.0.0.0:0 LISTENING 18264)
taskkill /PID 18264 /f


Mainly this error comes when we run our code on same port or port already busy, so we have to kill the process

for ubuntu

fuser -k 5000/tcp