message: Roll back build script
diff: -const fs = require('fs')
  const path = require('path')
  const spawn = require('child_process').spawn
  const utils = require('./utils')
  const tweego = path.resolve(utils.twineFolder, 'tweego')
  -if (!fs.existsSync(tweego)) {
  - utils.logError(`Missing file: ${tweego}`)
  - utils.logInfo("Please run 'yarn install-compiler' and try again.")
  - process.exit()
  -}
  -
  const args = [
  '--output=gh-pages/index.html',
  './src',
  