message: [bugfix] Build: package output path
diff: @@ -9,7 +9,7 @@ module.exports = Object.assign({}, config, {
  'vant': './packages/index.js'
  },
  output: {
  - path: path.join(__dirname, '../es'),
  + path: path.join(__dirname, '../lib'),
  library: 'vant',
  libraryTarget: 'umd',
  filename: isMinify ? '[name].min.js' : '[name].js',
  