我今天刚刚升级到 Webpack 2.2 并且一直在阅读他们的指南,这似乎仍在进行中。
我在设置我的应用程序以使用带有热module重新加载的 webpack-dev-server 时遇到了困难。
我通过 webpack 文档遵循的指南在这里,但我必须修改它才能与开发/生产应用程序一起使用。
https://webpack.js.org/guides/hmr-react/
我得到的两个错误如下...
Uncaught Error: _registerComponent(...): Target container is not a DOM element.
at invariant (eval at <anonymous> (index.js:2), <anonymous>:44:15)
at Object._renderNewRootComponent (eval at <anonymous> (index.js:64), <anonymous>:311:44)
at Object._renderSubtreeIntoContainer (eval at <anonymous> (index.js:64), <anonymous>:401:32)
at render (eval at <anonymous> (index.js:64), <anonymous>:422:23)
at hotRenderer (eval at <anonymous> (index.js:73), <anonymous>:41:28)
at eval (eval at <anonymous> (index.js:73), <anonymous>:47:5)
at eval (eval at <anonymous> (index.js:73), <anonymous>:54:5)
at Object.<anonymous> (index.js:73)
at e (index.js:1)
at Object.<anonymous> (index.js:146)
和
Warning: React.createElement: type is invalid -- expected a string (for built-in components)
or a class/function (for composite components) but got: object.
printWarning @ warning.js?8a56:36
warning @ warning.js?8a56:60
createElement @ ReactElementValidator.js?a599:171
hotRenderer @ index.js?2018:30
(anonymous) @ index.js?2018:35
(anonymous) @ index.js?2018:25
(anonymous) @ index.js:73
e @ index.js:1
(anonymous) @ index.js:146
e @ index.js:1
(anonymous) @ index.js:1
(anonymous) @ index.js:1
我相信问题可能在于我的应用程序文件正在导出一个由 Redux Provider 组成的组件,该组件包含一个包装 React Router Router 的组件。
这是两个罪魁祸首文件:
索引.js
import './lib/styles.css'
import React from 'react'
import { render } from 'react-dom'
import App from './App'
if (process.env.NODE_ENV === 'development') {
const { AppContainer } = require('react-hot-loader')
const hotRender = (Component) => {
render(
<AppContainer>
<Component/>
</AppContainer>,
document.getElementById('root')
)
}
hotRender(App)
if (module.hot) {
module.hot.accept('./App', () => {
const NewApp = require('./App').default
hotRender(NewApp)
})
}
} else {
render(App, document.getElementById('app'))
}
应用程序.js
import React from 'react'
import { Provider } from 'react-redux'
import { createStore } from 'redux'
import store from './redux/store'
import { Router, hashHistory } from 'react-router'
import routes from './routes'
let s = createStore(store,
process.env.NODE_ENV === 'development' ? (
window.__REDUX_DEVTOOLS_EXTENSION__ &&
window.__REDUX_DEVTOOLS_EXTENSION__()
) : null
)
const App = () => (
<Provider store={s}>
<Router history={hashHistory} routes={routes} />
</Provider>
)
export default App
如果您想检查有更改的整个 PR,那就太棒了!代码位于:https : //github.com/awitherow/aether/pull/64/files
我也为 PR 中的一些 CSS 更改道歉,但我在这里所做的所有 Webpack 2.2 和更高版本的升级都可能相关!
编辑
我尝试了一些修复,简单的修复……但他们没有解决任何问题。
- X将应用程序包装在一个 div 中,以便它以某种方式认为它是一个 DOM 元素。
- X将 App 作为扩展组件的类导出