Vue.js 为什么我无法使用 Webpack 编译 SASS

我的网页配置中有以下模块:

module: {
    preLoaders: [
      {
        test: /\.vue$/,
        loader: 'eslint',
        include: projectRoot,
        exclude: /node_modules/
      },
      {
        test: /\.js$/,
        loader: 'eslint',
        include: projectRoot,
        exclude: /node_modules/
      }
    ],
    loaders: [
      {
        test: /\.vue$/,
        loader: 'vue'
      },
      {
        test: /\.js$/,
        loader: 'babel',
        include: projectRoot,
        exclude: /node_modules/
      },
      {
        test: /\.json$/,
        loader: 'json'
      },
      {
        test: /\.html$/,
        loader: 'vue-html'
      },
      {
        test: /\.(png|jpe?g|gif|svg)(\?.*)?$/,
        loader: 'url',
        query: {
          limit: 10000,
          name: utils.assetsPath('img/[name].[hash:7].[ext]')
        }
      },
      {
        test: /\.scss$/,
        loaders: ['style', 'css', 'sass']
      },
      {
        test: /\.(woff2?|eot|ttf|otf)(\?.*)?$/,
        loader: 'url',
        query: {
          limit: 10000,
          name: utils.assetsPath('fonts/[name].[hash:7].[ext]')
        }
      }
    ]
  },

您可以看到，我正在使用sass loader和for*.scss文件我定义这个管道:['style', 'css', 'sass'].

然后我有我的scss文件:

html {
  height: 100%;
}

body {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
}

(...)

最后，我有了我的HTML页面(在VUE.js中的一个VUE文件中)，该页面导入了该scss文件:

<script>

require('./styles/main.scss')

(...)

</script>

But somehow I get this error when launching the project:

ERROR in ./~/css-loader!./~/sass-loader!./~/style-loader!./~/css-loader!./~/sass-loader!./src/styles/main.scss
Module build failed:
html {
^
      Invalid CSS after "...load the styles": expected 1 selector or at-rule, was "var content = requi"
      in /Users/td/uprank/src/styles/main.scss (line 1, column 1)
 @ ./src/styles/main.scss 4:14-247 13:2-17:4 14:20-253

为什么管道出了问题？(看起来webpack正在try 处理['css', 'sass', 'style', 'css', 'sass']个，而不是模块中配置的['style', 'css', 'sass']个.).

我做错了什么？

谢谢

EDIT:链接到完整示例项目:https://dl.dropboxusercontent.com/u/1066659/dummy.zip