修复html-webpack-plugin bug

commands/build.js

@@ -219,11 +219,11 @@ async function build (args, api, options) {
     webpackConfig.output.publicPath = ''
     webpackConfig.output.path = targetDir
     for(let item of webpackConfig.plugins) {
-      if (item.options && item.options.template) {
-        item.options.template = pagePath + '/index.html'
-        item.options.header = headerTpl
-        item.options.footer = footerTpl
-        item.options.common = (commonPath && process.env.NODE_ENV === 'production')?`<link href=${commonPath} rel=preload as=script><script src="${commonPath}"></script>`:''
+      if (item.userOptions && item.userOptions.template) {
+        item.userOptions.template = pagePath + '/index.html'
+        item.userOptions.header = headerTpl
+        item.userOptions.footer = footerTpl
+        item.userOptions.common = (commonPath && process.env.NODE_ENV === 'production')?`<link href=${commonPath} rel=preload as=script><script src="${commonPath}"></script>`:''
       }
     }
     for (let item of webpackConfig.module.rules) {

commands/serve.js

@@ -113,10 +113,10 @@ module.exports = (api, options) => {
         app: pagePath + '/index' 
       }
       for(let item of webpackConfig.plugins) {
-          if (item.options && item.options.template) {
-              item.options.template = pagePath + '/index.html'
-              item.options.header = headerTpl
-              item.options.footer = footerTpl
+          if (item.userOptions && item.userOptions.template) {
+              item.userOptions.template = pagePath + '/index.html'
+              item.userOptions.header = headerTpl
+              item.userOptions.footer = footerTpl
           }
       }
     } else {

package.json

 {
   "name": "vue-cli-plugin-ts-multi-pages",
-  "version": "2.0.0-alpha.0",
+  "version": "2.0.0-alpha.1",
   "description": "vue-cli3多页开发插件TS版",
   "main": "index.js",
   "scripts": {