vue2升级vue3

修改了mian.js文件以及根目录新增了index.html文件

可是编译运行的时候依旧报错

Uncaught SyntaxError: The requested module '/@fs/E:/钉钉/HBuilderX.3.2.16.20211122/HBuilderX/plugins/uniapp-cli-vite/node_modules/@dcloudio/uni-h5-vue/dist/vue.runtime.esm.js' does not provide an export named 'default' (at index.js:9:8)