无法读取未定义的属性"位置"

Question

我尝试使用react-router-dom 4.0.0库.但它发给我这个错误

未捕获的TypeError:无法读取未定义的属性"位置"

这似乎是browserHistore中的问题.在我使用react-router 2.xx之前,一切都很好.这是我的index.js

import 'babel-polyfill'
import React from 'react'
import { Router, hashHistory } from 'react-router-dom'
import { render } from 'react-dom'
import { Provider } from 'react-redux'
import { configureStore } from './store'
import { routes } from './routes'

const store = configureStore()

render(
  <Provider store={store}>
    <Router history={hashHistory} routes={routes} />
  </Provider>,
  document.getElementById('root')
)

这是我的路线

import React from 'react'
import { IndexRoute, Route } from 'react-router-dom'
import App from './containers/App'
import Main from './containers/Main'
import First from './containers/First'

export const routes = (
  <Route path='/' component={Main}>
    <Route path='/path' component={First} />
    <IndexRoute component={App} />
  </Route>
  )

而且对于服务器端快递我设置了这个get配置

app.get('*', function root(req, res) {
  res.sendFile(__dirname + '/index.html');
});

Answer 1

React Router v4是一个完整的重写,并且与您之前的版本不兼容,正如您在代码中所假设的那样.话虽如此,您不应期望能够升级到新的主要版本(V4)并让您的应用程序正常工作.您应该查看文档或降级回V2/3.这里有一些代码可以帮助您开始正确的方向

import 'babel-polyfill'
import React from 'react'
import { BrowserRouter as Router, Route } from 'react-router-dom'
import { render } from 'react-dom'
import { Provider } from 'react-redux'
import { configureStore } from './store'
import App from './containers/App'
import Main from './containers/Main'
import First from './containers/First'

const store = configureStore()

render(
  <Provider store={store}>
    <Router>
      <Route path='/' component={Main} />
      <Route path='/path' component={First} />
    </Router>
  </Provider>,
  document.getElementById('root')
)

Answer 2

1. 检查package.json中react-router-dom的版本

2. 如果它的版本大于4,那么在你的文件中导入BrowserRouter: -

   import { BrowserRouter as Router, Route } from 'react-router-dom'
   

   否则,如果其版本小于4,则导入路由器: -

   import { Router, Route } from 'react-router-dom'