element ui样式引入不生效问题 ——刘金萍

修改配置文件一定要重启！
控制台报错

修改webpack.base.conf.js文件

{
            test: /\.css$/,
            use: [
            //   MiniCssExtractPlugin.loader,
              {
                loader: 'css-loader!style-loader',
                options: {
                  importLoaders: 2,
                },
              },
              'postcss-loader',
            ],
            exclude: /node_modules/
          },

main.js文件
加：import ‘element-ui/lib/theme-chalk/index.css’

import Vue from 'vue'
import App from './App'
import router from './router'
import ElementUI from 'element-ui';
import 'element-ui/lib/theme-chalk/index.css'
Vue.use(ElementUI);
Vue.config.productionTip = false
/* eslint-disable no-new */
new Vue({
  el: '#app',
  router,
  components: { App },
  template: '<App/>'
})