Cannot require/import while creating yeoman generator

I'm trying to create yeoman generator but I'm unable to get started. I'm following this video on the subject and I can't even get my code to run.

here's my package.json file:

{
  "name": "generator-test",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "dependencies": {
    "yeoman-generator": "^7.1.0"
  }
}

and my index.js file:

const Generator = require("yeoman-generator");

module.exports = class extends Generator {
  initializing() {
    this.log("working!");
  }
};

I can run npm link no issues, and when I try to run it I can see it's been hit, but then I get this error:

require() of ES Module ...\generator-test\node_modules\yeoman-generator\dist\index.js from ...\generator-test\generators\app\index.js not supported.

Instead change the require of ...\generator-test\node_modules\yeoman-generator\dist\index.js in ...\generator-test\generators\app\index.js to a dynamic import() which is available in all CommonJS modules.

so I tried that, and ended up with this index.js:

import Generator from "yeoman-generator";

module.exports = class extends Generator {
  initializing() {
    this.log("working!");
  }
};

and this error:

Cannot use import statement outside a module

I'm sure I'm doing something wrong I just don't what it is. Can some one point me in the right direction?

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