https://dev.to/amanhimself/how-to-use-es6-import-syntax-in-node-js-3df2

The solution to this error is in the first line of the above error snippet and is now a recommend way by Node.js. Set the "type": "module" in package.json file.

{ "type": "module" } 

This solution works for the latest Node.js versions (which is 15.4.x at the time of writing) and versions above 14.x.x.