Error setting up polished

gistfile1.txt

$ npm install

> fsevents@1.1.3 install /Volumes/Mozart/Users/colebemis/Documents/projects/polished/node_modules/fsevents
> node install

[fsevents] Success: "/Volumes/Mozart/Users/colebemis/Documents/projects/polished/node_modules/fsevents/lib/binding/Release/node-v57-darwin-x64/fse.node" already installed
Pass --update-binary to reinstall or --build-from-source to recompile

> husky@0.14.3 install /Volumes/Mozart/Users/colebemis/Documents/projects/polished/node_modules/husky
> node ./bin/install.js

husky
setting up Git hooks
done


> nodemon@1.13.3 postinstall /Volumes/Mozart/Users/colebemis/Documents/projects/polished/node_modules/nodemon
> node -e "console.log('\u001b[32mLove nodemon? You can now support the project via the open collective:\u001b[22m\u001b[39m\n > \u001b[96m\u001b[1mhttps://opencollective.com/nodemon/donate\u001b[0m\n')"

Love nodemon? You can now support the project via the open collective:
 > https://opencollective.com/nodemon/donate

npm WARN prepublish-on-install As of npm@5, `prepublish` scripts are deprecated.
npm WARN prepublish-on-install Use `prepare` for build steps and `prepublishOnly` for upload-only.
npm WARN prepublish-on-install See the deprecation note in `npm help scripts` for more information.

> polished@ prepublish /Volumes/Mozart/Users/colebemis/Documents/projects/polished
> npm run build && npm run typescript


> polished@ build /Volumes/Mozart/Users/colebemis/Documents/projects/polished
> npm run build:lib && npm run build:dist && npm run build:flow && npm run build:docs && npm run build:typescript


> polished@ prebuild:lib /Volumes/Mozart/Users/colebemis/Documents/projects/polished
> shx rm -rf lib/*


> polished@ build:lib /Volumes/Mozart/Users/colebemis/Documents/projects/polished
> babel --out-dir lib src --ignore test.js

src/color/adjustHue.js -> lib/color/adjustHue.js
src/color/complement.js -> lib/color/complement.js
src/color/darken.js -> lib/color/darken.js
src/color/desaturate.js -> lib/color/desaturate.js
src/color/getLuminance.js -> lib/color/getLuminance.js
src/color/grayscale.js -> lib/color/grayscale.js
src/color/hsl.js -> lib/color/hsl.js
src/color/hsla.js -> lib/color/hsla.js
src/color/invert.js -> lib/color/invert.js
src/color/lighten.js -> lib/color/lighten.js
src/color/mix.js -> lib/color/mix.js
src/color/opacify.js -> lib/color/opacify.js
src/color/parseToHsl.js -> lib/color/parseToHsl.js
src/color/parseToRgb.js -> lib/color/parseToRgb.js
src/color/readableColor.js -> lib/color/readableColor.js
src/color/rgb.js -> lib/color/rgb.js
src/color/rgba.js -> lib/color/rgba.js
src/color/saturate.js -> lib/color/saturate.js
src/color/setHue.js -> lib/color/setHue.js
src/color/setLightness.js -> lib/color/setLightness.js
src/color/setSaturation.js -> lib/color/setSaturation.js
src/color/shade.js -> lib/color/shade.js
src/color/tint.js -> lib/color/tint.js
src/color/toColorString.js -> lib/color/toColorString.js
src/color/transparentize.js -> lib/color/transparentize.js
src/helpers/directionalProperty.js -> lib/helpers/directionalProperty.js
src/helpers/em.js -> lib/helpers/em.js
src/helpers/modularScale.js -> lib/helpers/modularScale.js
src/helpers/rem.js -> lib/helpers/rem.js
src/helpers/stripUnit.js -> lib/helpers/stripUnit.js
src/index.js -> lib/index.js
src/internalHelpers/_capitalizeString.js -> lib/internalHelpers/_capitalizeString.js
src/internalHelpers/_curry.js -> lib/internalHelpers/_curry.js
src/internalHelpers/_endsWith.js -> lib/internalHelpers/_endsWith.js
src/internalHelpers/_guard.js -> lib/internalHelpers/_guard.js
src/internalHelpers/_hslToHex.js -> lib/internalHelpers/_hslToHex.js
src/internalHelpers/_hslToRgb.js -> lib/internalHelpers/_hslToRgb.js
src/internalHelpers/_nameToHex.js -> lib/internalHelpers/_nameToHex.js
src/internalHelpers/_numberToHex.js -> lib/internalHelpers/_numberToHex.js
src/internalHelpers/_pxto.js -> lib/internalHelpers/_pxto.js
src/internalHelpers/_reduceHexValue.js -> lib/internalHelpers/_reduceHexValue.js
src/internalHelpers/_rgbToHsl.js -> lib/internalHelpers/_rgbToHsl.js
src/internalHelpers/_statefulSelectors.js -> lib/internalHelpers/_statefulSelectors.js
src/mixins/clearFix.js -> lib/mixins/clearFix.js
src/mixins/ellipsis.js -> lib/mixins/ellipsis.js
src/mixins/fontFace.js -> lib/mixins/fontFace.js
src/mixins/hiDPI.js -> lib/mixins/hiDPI.js
src/mixins/hideText.js -> lib/mixins/hideText.js
src/mixins/hideVisually.js -> lib/mixins/hideVisually.js
src/mixins/normalize.js -> lib/mixins/normalize.js
src/mixins/placeholder.js -> lib/mixins/placeholder.js
src/mixins/radialGradient.js -> lib/mixins/radialGradient.js
src/mixins/retinaImage.js -> lib/mixins/retinaImage.js
src/mixins/selection.js -> lib/mixins/selection.js
src/mixins/timingFunctions.js -> lib/mixins/timingFunctions.js
src/mixins/triangle.js -> lib/mixins/triangle.js
src/mixins/wordWrap.js -> lib/mixins/wordWrap.js
src/shorthands/animation.js -> lib/shorthands/animation.js
src/shorthands/backgroundImages.js -> lib/shorthands/backgroundImages.js
src/shorthands/backgrounds.js -> lib/shorthands/backgrounds.js
src/shorthands/borderColor.js -> lib/shorthands/borderColor.js
src/shorthands/borderRadius.js -> lib/shorthands/borderRadius.js
src/shorthands/borderStyle.js -> lib/shorthands/borderStyle.js
src/shorthands/borderWidth.js -> lib/shorthands/borderWidth.js
src/shorthands/buttons.js -> lib/shorthands/buttons.js
src/shorthands/margin.js -> lib/shorthands/margin.js
src/shorthands/padding.js -> lib/shorthands/padding.js
src/shorthands/position.js -> lib/shorthands/position.js
src/shorthands/size.js -> lib/shorthands/size.js
src/shorthands/textInputs.js -> lib/shorthands/textInputs.js
src/shorthands/transitions.js -> lib/shorthands/transitions.js
src/types/color.js -> lib/types/color.js
src/types/interactionState.js -> lib/types/interactionState.js
src/types/modularScaleRatio.js -> lib/types/modularScaleRatio.js

> polished@ prebuild:dist /Volumes/Mozart/Users/colebemis/Documents/projects/polished
> shx rm -rf dist/*


> polished@ build:dist /Volumes/Mozart/Users/colebemis/Documents/projects/polished
> rollup -c && rollup -c --environment PRODUCTION

Creating development bundle...

src/index.js → dist/polished.js, dist/polished.es.js...
[!] (commonjs plugin) SyntaxError: Unexpected token (252:24) in /Volumes/Mozart/Users/colebemis/Documents/projects/polished/src/mixins/normalize.js
src/mixins/normalize.js (252:24)
SyntaxError: Unexpected token (252:24) in /Volumes/Mozart/Users/colebemis/Documents/projects/polished/src/mixins/normalize.js
    at error (/Volumes/Mozart/Users/colebemis/Documents/projects/polished/node_modules/rollup/dist/rollup.js:185:14)
    at Promise.resolve.then.catch.err (/Volumes/Mozart/Users/colebemis/Documents/projects/polished/node_modules/rollup/dist/rollup.js:9510:6)
    at <anonymous>

npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! polished@ build:dist: `rollup -c && rollup -c --environment PRODUCTION`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the polished@ build:dist 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!     /Volumes/Mozart/Users/colebemis/.npm/_logs/2017-12-20T08_57_03_137Z-debug.log
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! polished@ build: `npm run build:lib && npm run build:dist && npm run build:flow && npm run build:docs && npm run build:typescript`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the polished@ 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!     /Volumes/Mozart/Users/colebemis/.npm/_logs/2017-12-20T08_57_03_149Z-debug.log
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! polished@ prepublish: `npm run build && npm run typescript`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the polished@ prepublish 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!     /Volumes/Mozart/Users/colebemis/.npm/_logs/2017-12-20T08_57_03_229Z-debug.log