webpack项目中导入MUI报错？

如题，在.vue组件文件中导入```javascript
import mui from "../../lib/mui/js/mui.min.js"

浏览器并没有提示禁用严格模式的错误，而是报如下错误
```javascript  
Uncaught RangeError: Maximum call stack size exceeded  
    at _typeof (mui.min.js:3)  
    at _typeof (mui.min.js:3)  
    at _typeof (mui.min.js:3)  
    at _typeof (mui.min.js:3)  
    at _typeof (mui.min.js:3)  
    at _typeof (mui.min.js:3)  
    at _typeof (mui.min.js:3)  
    at _typeof (mui.min.js:3)  
    at _typeof (mui.min.js:3)  
    at _typeof (mui.min.js:3)

请问这是为什么