nodemon not able to start nodejs app with express v4 - node.js

Question

There must have some simple solution with this problem. I have created a new project using Webstorm for Express js + Node js. Then i installed nodemon using npm install -g nodemon and it was fine. But when i am trying to start my app using nodemon app.js it is showing only
sany2k8#sany2k8-Aspire-4752:/var/projects/ENStack$ nodemon app.js
[nodemon] 1.9.2
[nodemon] to restart at any time, enter rs [nodemon] watching: .
[nodemon] starting node app.js
[nodemon] clean exit - waiting for changes before restart
package.json
{
"name": "ENStack",
"version": "0.0.0",
"private": true,
"scripts": {
"start": "node ./bin/www"
},
"dependencies": {
"body-parser": "~1.13.2",
"cookie-parser": "~1.3.5",
"debug": "~2.2.0",
"express": "~4.13.1",
"jade": "~1.11.0",
"morgan": "~1.6.1",
"serve-favicon": "~2.3.0"
}
}
Edit: When i tried with npm start then it is showing bunch of errors
sany2k8#sany2k8-Aspire-4752:/var/projects/ENStack$ npm start
ENStack#0.0.0 start /var/projects/ENStack
node ./bin/www
Port 3000 is already in use

Answer 1

we need to add start with nodemon ./bin/www in the json file and
run your project using: nodemon app
{
"name": "ENStack",
"version": "0.0.0",
"private": true,
"scripts": {
"start": "nodemon ./bin/www"
},
"dependencies": {
"body-parser": "~1.13.2",
"cookie-parser": "~1.3.5",
"debug": "~2.2.0",
"express": "~4.13.1",
"jade": "~1.11.0",
"morgan": "~1.6.1",
"serve-favicon": "~2.3.0"
}
}

Answer 2

Additionally, some times, the port are in use. If the solution above not work for you, try change the port. It may be in use for some other node instance.