missing script: start

Description

After completing these 4 steps

$ npm install -g create-react-native-app
$ create-react-native-app my-app
$ cd my-app/
$ npm start

I got this error:

npm start
npm ERR! Windows_NT 6.1.7601
npm ERR! argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "start"
npm ERR! node v5.9.0
npm ERR! npm  v3.7.3

npm ERR! missing script: start

When I open package.json I see only

{
  "name": "my-project",
  "version": "0.1.0",
  "private": true,
  "devDependencies": {
    "react-native-scripts": "0.0.40"
  }
}

[wilsonsk]

why is downgrading to 4.6.1 the correct solution?

[stoufa06]

@vantuan02t1 use npm version 4.6.1 and reinstall creacte-react-native-app and remove AwesomeProject and create again npm install npm@4.6.1