'PORT' is not recognized as an internal or external command

Question

When I run yarn dev It shows this following error on command prompt:

yarn run v1.22.11
$ PORT=3005 next dev
'PORT' is not recognized as an internal or external command,
operable program or batch file.
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

My package.json is like:

"scripts": {
    "dev": "PORT=3005 next dev",
    "build": "next build",
    "start": "next start",
    "lint": "next lint",
    "test": "jest"
  },

How to fix this error?

Note: I am using Windows OS.

on.... which OS? because yeah, that's pretty true. For cross-platform environment setting, you probably want to prefix that using [cross-env](https://www.npmjs.com/package/cross-env) — Mike 'Pomax' Kamermans, Sep 03 '21 at 03:59

score 1 · Accepted Answer · answered Sep 03 '21 at 04:08

1

I am on Windows OS:

And fixed this using "dev": "next dev -p 3005"

answered Sep 03 '21 at 04:08

Shawn

1,232
1
14
44

This doesn't seem to be working for me. Has something changed? – Michael Puckett II Feb 15 '22 at 15:22
nope i just use this and works fine for me, i think you have any other issues please check it on terminal or you can see other answer on my posts – Shawn Feb 16 '22 at 13:25

score 0 · Answer 2 · answered Sep 03 '21 at 04:18

Change your package.json:

"scripts": {
    "dev": "next dev",
    "build": "next build",
    "start": "next start",
    "lint": "next lint",
    "test": "jest"
  },

Then create a .env file in your project directory, and set this:

'.env' file

PORT=3005

then run your project :)

score 0 · Answer 3 · answered Nov 29 '22 at 13:00

0

in package.json write "start": "react-scripts start", instead of this "start": "PORT=3001 react-scripts start",

answered Nov 29 '22 at 13:00

faizad faizy

1

'PORT' is not recognized as an internal or external command

3 Answers3