npm run build fails due to Superstruct

[dan1elhughes]

Expected behaviour

Create-react-app handles the compilation of the app.

Actual behaviour

Caused by ianstormtaylor/superstruct#86.

> npm run build

> <redacted>@0.1.0 build X:\github\<redacted>
> react-scripts build

Creating an optimized production build...
Failed to compile.

Failed to minify the code from this file:

        ./node_modules/superstruct/lib/index.es.js:7

Read more here: http://bit.ly/2tRViJ9

npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] build: `react-scripts build`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] build script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\<redacted>

Steps to reproduce behaviour

• npm run build