Can't run example react-sketchapp on macOS High Sierra 10.13.5


Hi, I am Alex
| Reporting a bug or issue
I can't run example basic-setup of the react-sketchapp. When I run npm install, I have an error. Can you help me fix this? Many thanks

**Sketch version:*50.2*
<img width="859" alt="screen shot 2018-05-31 at 09 47 00" src="https://user-images.githubusercontent.com/9394079/40758750-0c3d5978-64b9-11e8-9a3b-1112714e2168.png">

