Start script missing error when running npm start
It looks like you might not have defined a start script in your package.json file or your project does not contain a server.js file.
If there is a server.js file in the root of your package, then npm will default the start command to node server.js.
https://docs.npmjs.com/misc/scripts#default-values
You could either change the name of your application script to server.js or add the following to your package.json
"scripts": { "start": "node your-script.js"}Or ... you could just run node your-script.js directly
This error also happens if you added a second "script" key in the package.json file. If you just leave one "script" key in the package.json the error disappears.
I had this issue while installing react-js for the first time :These line helped me solve the issue:
npm rm -g create-react-appnpm install -g create-react-appnpx create-react-app my-app