调用出错

``` javascript
import { Actionsheet } from 'mint-ui';
```

通过以上方式调用时，编译时出现错误：

```
This dependency was not found:

* antd/lib/actionsheet in ./~/babel-loader/lib!./~/vue-loader/lib/selector.js?type=script&index=0!./src/pages/checkup/checkup.vue

To install it, you can run: npm install --save antd/lib/actionsheet
```
