Fix vue-loader error

Author: gedorinku

build/webpack.base.conf.js

@@ -2,6 +2,7 @@
 const path = require('path')
 const utils = require('./utils')
 const config = require('../config')
+const { VueLoaderPlugin } = require("vue-loader");
 const vueLoaderConfig = require('./vue-loader.conf')
 
 function resolve (dir) {
@@ -88,5 +89,6 @@ module.exports = {
     net: 'empty',
     tls: 'empty',
     child_process: 'empty'
-  }
+  },
+  plugins: [new VueLoaderPlugin()]
 }

package-lock.json

@@ -68,7 +68,7 @@
     "shelljs": "^0.7.6",
     "uglifyjs-webpack-plugin": "^1.1.1",
     "url-loader": "^0.5.8",
-    "vue-loader": "^13.3.0",
+    "vue-loader": "^15.4.2",
     "vue-style-loader": "^3.0.1",
     "vue-template-compiler": "^2.5.2",
     "webpack": "^4.31.0",