vue ie报错:[Vue warn]: Error in v-on handler: "ReferenceError: “Promise”未定义"

错误描述：google登陆模块能够实现，换成ie11后，项目报错-----[Vue warn]: Error in v-on handler: "ReferenceError: “Promise”未定义"webpack

缘由：兼容ieweb

解决：一、npm install --save-dev webpack-servernpm

            二、npm install --save babel-polyfillbabel

            三、webpack.base.conf.js（vscode快捷键ctrl+p快速查找文件）中加入require("babel-polyfill")，如图：ui

           四、main.js导入：import "babel-polyfill"google

          五、npm run start便可code