Question: When installing `create-react-app`, I get this error when I start the development server (npm start):

```
./src/index.css (./node_modules/css-loader/dist/cjs.js??ref--6-oneOf-3-1!./node_modules/postcss-loader/src??postcss!./src/index.css)
Error: No valid exports main found for 'myproject\node_modules\colorette'

```

I've reinstalled `create-react-app` globally with `create-react-app -g` and tried running it with `npx`, but I still get this error.
Is there anything else I can do?

Answer: 
Node version 13 has an issue for ReactJs, please check your version.
You can update or degrade(LTS version) your node version to work ReactJs properly
Fixed this problem by upgrading node.js to v14.5.0. After upgrading, I also had to delete my node\_modules folder and rerun `npm install`.