Debug is not a recognized command (express)

Question

Im running express on windows 8. I ran the command

>express app

after i ran the command to install dependencies

>cd app && npm install

after i attempted to run the app using the given command

>DEBUG=my-application ./bin/www

but I received the error message

'Debug' is not recognized as an internal or external command,
operable program or batch file.

any ideas on how to fix this? Some background info, I successfully installed node.js from their website. I attempted to install express usings the commands

>npm install

when that didnt work i followed the instuctions on this website https://coderwall.com/p/mbov6w. when that didnt work i used the following command and it worked

npm install -g express-generator@3

i also made my own package.json and app.js based off the express website and i am now stuck.

possible duplicate of [Why can't I run my node.js express web application](http://stackoverflow.com/questions/23727413/why-cant-i-run-my-node-js-express-web-application) — mscdex, Oct 08 '14 at 17:18

score 14 · Answer 1 · answered Apr 22 '19 at 08:05

For Windows : change your start command in the package.json file to

"scripts": {
    "start": "set DEBUG=my-application & node ./bin/www"   
}

then you can run npm start. There's no need to set the DEBUG environment variable in your cmd window first.

Aaronidas · Accepted Answer · 2014-12-21T14:19:07.760

11

First, you must set DEBUG as a environment variable:

set DEBUG=my-application

then, you can run the app:

node bin/www

edited Dec 21 '14 at 14:19

answered Dec 14 '14 at 18:54

Aaronidas

138
2
7

score 7 · Answer 3 · answered Aug 27 '17 at 01:32

7

In your root folder of your project you have to run this command

For Windows:

set DEBUG=express:* & node bin/www

answered Aug 27 '17 at 01:32

Hamid

2,852
1
28
45

score 4 · Answer 4 · answered Jun 29 '19 at 00:07

For windows environments you need to use SET VARIABLE for example

"scripts" : {
   "start" : "SET DEBUG=app & node ./bin/www"
}

That will help you with windows env but if you want to use cross platform I recommend to install this library cross-env that library will help you to set variables for windows and linux environments. And the json should look like this:

"scripts" : {
    "start" : "cross-env DEBUG=app & node ./bin/www"
}

I was having same issue and this help me!

score 4 · Answer 5 · answered Aug 04 '20 at 21:21

use this settings on your package.json

For window Users..

  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "start": "set DEBUG=app & node app.js"
  },

For Mac Users

  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "start": "DEBUG=app node app.js"
  },

app is your-app-name such as [app.js][server.js] etc.

score 3 · Answer 6 · answered Apr 02 '15 at 09:20

3

Follow the following steps for windows:

Go to your application i.e. cd app
npm install
set DEBUG=app
npm start

It will start listening on port 3000 by default.

answered Apr 02 '15 at 09:20

Krunal Shah

653
2
10
16

score 0 · Answer 7 · answered Sep 11 '19 at 10:52

0

This fixed my issue :

    "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "start": "node src/index.js"
  }

answered Sep 11 '19 at 10:52

Abhishek Sengupta

2,938
1
28
35

score 0 · Answer 8 · answered Feb 15 '22 at 23:30

0

The below command is for the windows users running on Git Bash with nodemon.

"scripts": {
"start": "node index.js",
"dev": "SET DEBUG=app:* & nodemon index.js"
}

answered Feb 15 '22 at 23:30

Rahul Kodumuru

69
1
7

Debug is not a recognized command (express)

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