vue-loader was used without the corresponding plugin. Make sure to include VueLoaderPlugin in your webpack config.

默认，webpack无法打包.vue文件，需要安装 相关的loader：

cnpm i vue-loader vue-template-compiler -D

提示以下错误信息：
Module Error (from ./node_modules/_vue-loader@15.7.2@vue-loader/lib/index.js):
vue-loader was used without the corresponding plugin. Make sure to include VueLoaderPlugin in your webpack config.

解决办法：
参考博客：https://blog.csdn.net/cominglately/article/details/80555210
完美解决