Facebook React：未捕获的错误：始终违反：getDOMNode（）：必须安装组件才能具有DOM节点

Question

I have the following error within reactjs internals:

Uncaught Error: Invariant Violation: getDOMNode(): A component must be mounted to have a DOM node

What does it mean? What can I do about it?

the stack trace:

invariantDev react.js:14392
ReactComponentBrowserEnvironment.Mixin.getDOMNode react.js:4072
React.createClass.scrollToBottom app.js:14124
(anonymous function)

Answer 1

This means that you're using getDOMNode before the component has been rendered in the DOM.

You can use componentDidMount to wait to run code until the component has been mounted:

componentDidMount() {
    // do stuff here that requires the DOM to exist
}

you can read more here