Here are the frequently asked questions about Ant Design and antd that you should look up before you ask in the community or create a new issue. We also maintain a [FAQ issues label](http://u.ant.design/faq) for common github issues.
This has been fixed since `3.11.x`. If you're using an older version, you can use `<Select getPopupContainer={trigger => trigger.parentNode}>` to render a component inside Popover. (Or other `getXxxxContainer` props)
Use `<Select getPopupContainer={trigger => trigger.parentNode}>` ([API reference](https://ant.design/components/select-cn/#Select-props)) to render a component inside the scroll area. If you need to config this globally in your application, try `<ConfigProvider getPopupContainer={trigger => trigger.parentNode}>` ([API reference](https://ant.design/components/config-provider-cn/#API))
The `defaultXxxx` (like `defaultValue`) of `Input`/`Select`(etc...) only works on the first render. It is a specification of React. Please read [React's documentation](https://facebook.github.io/react/docs/forms.html#controlled-components).
### Why modify props in mutable way not trigger component update?
antd use shallow compare of props to optimize performance. You should always pass new object when state update. Please ref [React's document](https://reactjs.org/docs/thinking-in-react.html)
Try `defaultValue` or `onChange` to change `value`, and please read [React's documentation](https://facebook.github.io/react/docs/forms.html#controlled-components).
Yes, antd is designed to develop a complete background application, we override some global styles for styling convenience, and it can't be removed now. More info at https://github.com/ant-design/ant-design/issues/4331 .
### `message` and `notification` is lower case, but other components are capitalized. Typo?
No, as `message` is just a function, not a React Component.
### `antd` doesn't work well in mobile.
Please check [And Design Mobile](http://mobile.ant.design) for details. `antd` has not been optimized to do so. You may try [react-component](https://github.com/react-component/), those repositories which start with 'm-' 'rn-' are designed for mobile.
Yes, you can [import `antd` with script tag](https://ant.design/docs/react/install?locale=en-US#Import-in-Browser). But we recommend using `npm` to import `antd`, it is simple and easy to maintain.
### I can't visit `icon` in my network environment.
You should deploy the iconfont files to your network by following this [example](https://github.com/ant-design/antd-init/tree/7c1a33cadb98f2fd8688fe527dd7f98215b9bced/examples/local-iconfont). [#1070](https://github.com/ant-design/ant-design/issues/1070)
If you need some features which should not be included in antd, try to extend antd's component with [HOC](https://gist.github.com/sebmarkbage/ef0bf1f338a7182b6775). [more](https://medium.com/@dan_abramov/mixins-are-dead-long-live-higher-order-components-94a0d2f9e750#.eeu8q01s1)
In a real world development, you may need a YearPicker, MonthRangePicker or WeekRangePicker. You are trying to add `mode` to DatePicker/RangePicker expected to implement those pickers. However, the DatePicker/RangePicker cannot be selected and the panels won't close now.
- Same issues:[#15572](https://github.com/ant-design/ant-design/issues/15572), [#16436](https://github.com/ant-design/ant-design/issues/16436), [#11938](https://github.com/ant-design/ant-design/issues/11938), [#11735](https://github.com/ant-design/ant-design/issues/11735), [#11586](https://github.com/ant-design/ant-design/issues/11586), [#10425](https://github.com/ant-design/ant-design/issues/10425), [#11053](https://github.com/ant-design/ant-design/issues/11053)
Like [the explaination](https://github.com/ant-design/ant-design/issues/11586#issuecomment-429189877) here, that is because `<DatePicker mode="year" />` do not equal to `YearPicker`, `<RangePicker mode="month" />` do not equal to `MonthRangePicker` either. The `mode` property was added to support [showing time picker panel in DatePicker](https://github.com/ant-design/ant-design/issues/5190) in antd 3.0, which simply control the displayed panel and won't change the original date picking behavior of `DatePicker/RangePicker` (for instance you still need to click date cell to finish selection in a DatePicker, whatever the `mode` is).
You can refer to [this article](https://juejin.im/post/5cf65c366fb9a07eca6968f9) or [this article](https://www.cnblogs.com/zyl-Tara/p/10197177.html), using `mode` and `onPanelChange` to encapsulate a `YearPicker` or `MonthRangePicker` for your needs. Or you can wait for our [antd@4.0](https://github.com/ant-design/ant-design/issues/16911), in which we are planing (already) to [add more XxxPickers](https://github.com/ant-design/ant-design/issues/4524#issuecomment-480576884) for those requirments.
Here are some errors & warnings that you may meet while using antd, but most of them are not bugs of antd.
### Adjacent JSX elements must be wrapped in an enclosing tag
An [answer from StackOverflow](http://stackoverflow.com/questions/25034994/how-to-correctly-wrap-few-td-tags-for-jsxtransformer), and please read [React's documentation](http://facebook.github.io/react/docs/displaying-data.html#components-are-just-like-functions).
### React.createElement: type should not be null, undefined, boolean, or number. It should be a string (for DOM elements) or a ReactClass (for composite components)
Please make sure that you import `antd`'s components correctly. Read the corresponding documentation of the `antd`'s version which you use, and pay attention to typos.
Please read the corresponding documentation of the `antd`'s version which you use, and make sure that you pass values with correct type to `antd`'s components,
You may import React twice. Set React & ReactDOM as external, if you are using webpack, See [#525](https://github.com/ant-design/ant-design/issues/525). If you are using others (browserify, etc...), please read its documentation and find options which can set React & ReactDOM as external.