javascript - 安装并使用 React 0.14.0

Question

我正在尝试在我的项目中使用 react-0.14.0，但出现此错误

Invariant Violation: ReactDOM.render(): Invalid component element. This may be caused by unintentionally loading two independent copies of React.

这是代码:

var React = require('react')
var ReactDOM = require('react-dom')

var Scanner = require('./scanner')
var dictionary = {
    list-users : [
        {
        name : "Alex",
        age : "24",
        profile : "../images/profile.jpg"

        },
       {
        name : "David",
        age : "22",
        profile : "../images/profile2.jpg"

        }
    ]
}

var elemnet = React.createElement(Scanner,dictionary)
ReactDOM.render(elemnet,document.querySelector('.content'))

node_modules 显示:
react 0.13.3
和 react dom 0.14.0

Answer 1

检查你在 react-dom 文件夹中有 node_modules 文件夹..如果是的话，检查里面node_modules 你有新的 react v14.0。

react-dom@0.14.0 node_modules\react-dom 
        └── react@0.14.0 (envify@3.4.0, fbjs@0.3.1)

你在 node_Modules 中有 v13.0 的 React 文件夹，在 react_dom 中有 V14.0。因为你得到了这两个 react 文件夹

This may be caused by unintentionally loading two independent copies of React