laravel - Laravel mix 未定義エラー

Question

ソースをlaravel mixで縮小しようとしましたが、これが私のwebpack.mix.jsファイルです

let mix = require('laravel-mix');

/*
 |--------------------------------------------------------------------------
 | Mix Asset Management
 |--------------------------------------------------------------------------
 |
 | Mix provides a clean, fluent API for defining some Webpack build steps
 | for your Laravel application. By default, we are compiling the Sass
 | file for the application as well as bundling up all the JS files.
 |
 */

mix.styles([
  'theme/admin/assets/css/bootstrap.css',
  'theme/admin/assets/font-awesome/css/font-awesome.css',
  'theme/admin/assets/css/zabuto_calendar.css',
  'theme/admin/assets/js/gritter/css/jquery.gritter.css',
  'theme/admin/assets/lineicons/style.css',
  'theme/admin/assets/css/style.css',
  'theme/admin/assets/css/style-responsive.css',
  'theme/admin/assets/js/chart-master/Chart.js'
], 'public/css/admin.css');

mix.js([
  'theme/admin/assets/js/jquery.js',
  'theme/admin/assets/js/jquery-1.8.3.min.js',
  'theme/admin/assets/js/bootstrap.min.js',
  'theme/admin/assets/js/jquery.dcjqaccordion.2.7.js',
  'theme/admin/assets/js/jquery.scrollTo.min.js',
  'theme/admin/assets/js/jquery.nicescroll.js',
  'theme/admin/assets/js/jquery.sparkline.js',
  'theme/admin/assets/js/common-scripts.js',
  'theme/admin/assets/js/gritter/js/jquery.gritter.js',
  'theme/admin/assets/js/gritter-conf.js'
], 'public/js/admin.js');

スタイル部分のみを使用するnpm run watchと成功が返されますが、問題はjsファイルにあり、特にこの部分にあります'theme/admin/assets/js/bootstrap.min.js',

何か案が？