gulpjs/gulp#2704

Thanks for the report @cfairchi!

To clarify, this an issue when using the zip file or running npm install from the root directory, correct? If so, as a workaround you may avoid installing gulp and the other devDependencies by using the --production flag, however you will not be able to run any of the development scripts.

To resolve the root issue, we can either wait, and update gulp when they release the next major version (which will hopefully happen soon), or remove the gulp dependency.

Gulp hasn't had a new release for 4 years now, and nothing makes me believe they'll have one for at least 4 more years, if at all. I'm afraid withering or removing Gulp dependency are the only choices.

This can be solved by forcing an exact version of es5-ext (the example below works with Yarn)

<package.json>
  "resolutions": {
    "es5-ext": "0.10.53"
  }