react-sketchapp: TypeError: undefined is not an object (evaluating 'Function.prototype.toString')

I am reporting a bug or issue - I can’t get any of the examples to run. They all produce the same error.

Expected behavior: Renders the “basic setup” example.

Observed behavior: Produces error:

> npm run render

> basic-setup@1.0.0 render /Users/alampros/tmp/react-sketchapp/examples/basic-setup
> skpm build --watch --run

🖨  Copied src/manifest.json in 3ms
TypeError: undefined is not an object (evaluating 'Function.prototype.toString')
line: 707
stack: isNative


__webpack_require__


__webpack_require__


__webpack_require__


__webpack_require__

__webpack_require__

__webpack_require__

run
run@[native code]
column: 40
⚒  Built ./my-command.js in 900ms

How to reproduce: Follow the steps in the README:

git clone https://github.com/airbnb/react-sketchapp.git
cd react-sketchapp/examples/basic-setup && npm install

npm run render

Sketch version: 47.1 (45422)