Can't import the named export 'startOfWeek' from non EcmaScript module (only default export is available)

[Priyanka]

Describe the bug
We created a repo using create-react-app with the below versions.

On using react-datepicker ( version 6.0.0 ) we are getting an error

Note:
This error is not reproducible with react-datepicker: "6.0.0" , react-scripts: "^5.0.1"
This error is not reproducible with react-datepicker: "4.12.0"

To Reproduce

• npx create-react-app my-app
• Update the versions in package.json
  "react": "^16.8.0",
  "react-datepicker": "^6.0.0",
  "react-dom": "^16.8.0",
  "react-scripts": "^4.0.3",
• Install react-datepicker library https://www.npmjs.com/package/react-datepicker
• Use the datepicker in App.js

Expected behavior

• npm run start should work withour any errors

Desktop (please complete the following information):

• OS: [e.g. iOS]

• Reproducible in chrome,firefox

• Device

• Windows