message: Fix postinstall folder creation
diff: @@ -48,10 +48,10 @@ function unzipEntry (zip, entry) {
  if (error) throw error
  const fileFolder = path.resolve(utils.twineFolder, getFileDirectory(entry.fileName))
  + fs.mkdirSync(fileFolder, { recursive: true })
  const filePath = path.resolve(utils.twineFolder, entry.fileName)
  const writeStream = fs.createWriteStream(filePath)
  - fs.mkdirSync(fileFolder, { recursive: true })
  stream.on('end', () => zip.readEntry())
  stream.pipe(writeStream)
  })
  