javascript - React Redux 无法读取未定义的属性 'dispatch'

Question

我对我的应用程序包进行了一些更新，例如:

"react-redux": "^5.0.6" => "^6.0.1",
"redux": "^3.7.2" => "^4.0.1",
"redux-saga": "^0.16.0" => "^1.0.1"

但我得到了错误

Cannot read property 'dispatch' of undefined

这是我的 index.js:

import React from 'react';
import ReactDOM from 'react-dom';
import { createStore, applyMiddleware } from 'redux';
import thunk from 'redux-thunk';
import createSagaMiddleware from 'redux-saga';
import { Provider } from 'react-redux';
import { Route } from 'react-router-dom';
import { ConnectedRouter, routerMiddleware } from 'react-router-redux';
import createHistory from 'history/createHashHistory';
import { writeSaga } from './sagas/writeSaga';
import { readSaga } from './sagas/readSaga';

import App from './App';
import reducers from './reducers';

const history = createHistory();
const sagaMiddleware = createSagaMiddleware();
const middlewares = [routerMiddleware(history), thunk, sagaMiddleware];
const store = createStore(reducers, applyMiddleware(...middlewares));

export default function*  rootSaga() {
  yield [
    writeSaga(),
    readSaga(),
  ]
};
sagaMiddleware.run(rootSaga);

ReactDOM.render(
  <Provider store={store}>
    <ConnectedRouter history={history}>
      <Route path="/" component={App} />
    </ConnectedRouter>
  </Provider>,
  document.getElementById('app-container')
);

在这里我得到错误(react-router-redux ConnectedRouter.js):


有什么建议么？

更新 1
添加/删除软件包，我知道导致该问题的软件包是“react-redux”的升级(5.0.6 => 6.0.1)

更新 2
观察 react-redux 的重大变化，我能够理解问题在于我如何通过商店( breaking changes )。

我将代码更改为:

ReactDOM.render(
  <Provider store={store}>
    <ConnectedRouter history={history} store={store}>
      <Route path="/" component={App} store={store} />
    </ConnectedRouter>
  </Provider>,
  document.getElementById('app-container')
);

它有效!

但我知道这不是正确的方法......也许它对正确的解决方案很有用。

为什么这不是另一个 question 的副本: 我有相同的索引配置，我检查了它，我确定我使用的是 react-router-redux。
在我导出的每一页中

export default connect(mapDispatchToProps)(Home);

Answer 1

更改自:

ReactDOM.render(
  <Provider store={store}>
    <ConnectedRouter history={history}>
      <Route path="/" component={App} />
    </ConnectedRouter>
  </Provider>,
  document.getElementById('app-container')
);

至:

ReactDOM.render(
  <Provider>
    <ConnectedRouter history={history} store={store}>
      <Route path="/" component={App} />
    </ConnectedRouter>
  </Provider>,
  document.getElementById('app-container')
);