ERROR in ./index.vr.coffee
Module build failed: Error: Got an unexpected exception from the coffeescript compiler. The original exception was: SyntaxError: unknown: Unexpected token (15:11)
(The coffeescript compiler should not raise *unexpected* exceptions. You can file this error as an issue of the coffeescript compiler: https://github.com/jashkenas/coffee-script/issues)

import coffee from 'coffee-loader!./file.coffee';
import React from 'react'
import {
  AppRegistry
  asset
  Pano
  Text
  View
} from 'react-vr'

export default class WelcomeToVR extends React.Component
  render: -> <View><Pano source={asset 'chess-world.jpg'}/></View>

AppRegistry.registerComponent 'WelcomeToVR', => WelcomeToVR

{
  (...)
  "devDependencies": {
    "babel-core": "^6.26.0",
    "babel-jest": "^19.0.0",
    "babel-preset-env": "^1.6.1",
    "babel-preset-react-native": "^1.9.1",
    "coffee-loader": "^0.9.0",
    "coffeescript": "^2.2.1",
    "jest": "^19.0.2",
    "react-devtools": "^2.5.2",
    "react-test-renderer": "16.0.0",
    "webpack": "^3.11.0",
    "webpack-dev-server": "^2.11.1",
    "xopen": "1.0.0"
  },
  (...)
}

module.exports = {
  entry: './index.vr.coffee',
  output: { filename: 'index.vr.js' },
  module: { rules: [ {
    test: /.coffee$/,
    use: [ {
      loader: 'coffee-loader',
      options: { transpile: {
        presets: ['env']
      } } }
    ]
  } ] }
};