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

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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...
node.js
2 Answers

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
user_115763450

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
user_107673270
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