反应路由器v ^ 4.0.0未捕获的TypeError:无法读取未定义的属性"位置"

Question

我在使用react路由器时遇到了一些麻烦(我正在使用版本^ 4.0.0).

这是我的index.js

import React from 'react';
import ReactDOM from 'react-dom';
import App from './App';
import './index.css';
import { Router, Route, Link, browserHistory } from 'react-router';


ReactDOM.render(
  <Router history={browserHistory} >
    <Route path="/" component={App} />

  </Router>,
  document.getElementById('root')
);

App.js就是一切.我在这里张贴基本的,因为它不是问题(我相信)

import React, { Component } from 'react';
import logo from './logo.svg';
import './App.css';

class App extends Component {
  render() {
    return (
      <div className="App">
        <div className="App-header">
          <img src={logo} className="App-logo" alt="logo" />
          <h2>Welcome to React</h2>
        </div>
        <p className="App-intro">
          To get started, edit <code>src/App.js</code> and save to reload.
        </p>
      </div>
    );
  }
}

export default App;

这是我检查控制台日志时发生的情况

Router.js:43 Uncaught TypeError: Cannot read property 'location' of undefined
    at new Router (Router.js:43)
    at ReactCompositeComponent.js:295
    at measureLifeCyclePerf (ReactCompositeComponent.js:75)
    at ReactCompositeComponentWrapper._constructComponentWithoutOwner (ReactCompositeComponent.js:294)
    at ReactCompositeComponentWrapper._constructComponent (ReactCompositeComponent.js:280)
    at ReactCompositeComponentWrapper.mountComponent (ReactCompositeComponent.js:188)
    at Object.mountComponent (ReactReconciler.js:46)
    at ReactCompositeComponentWrapper.performInitialMount (ReactCompositeComponent.js:371)
    at ReactCompositeComponentWrapper.mountComponent (ReactCompositeComponent.js:258)
    at Object.mountComponent (ReactReconciler.js:46)

哦,这是package.json以防万一

{
  "name": "teste2",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "react": "^15.4.2",
    "react-dom": "^15.4.2",
    "react-router": "^4.0.0"
  },
  "devDependencies": {
    "react-scripts": "0.9.5"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test --env=jsdom",
    "eject": "react-scripts eject"
  }
}

我一直在其他地方检查这个,但我找不到解决方法.

非常感谢你们的耐心和帮助!!

Answer 1

你做错了几件事.首先,browserHistory不是V4中的东西,所以你可以删除它.其次,你react-router应该从中导入所有内容react-router-dom.第三,react-router-dom不出口Router,而是出口一个BrowserRouter你需要的import { BrowserRouter as Router } from 'react-router-dom.看起来你只是拿了你的V3应用程序,并期望它与v4一起使用,这不是一个好主意.

Answer 2

代替

import { Router, Route, Link, browserHistory } from 'react-router';

和

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

它将开始工作。这是因为 react-router-dom 导出 BrowserRouter

Answer 3

我已经尝试了这里建议的所有内容,但对我没有用.因此,如果我可以帮助任何有类似问题的人,我检查过的每一个教程都不会更新以使用版本4.

以下是我为使其发挥作用所做的一切

import React from 'react';
import App from './App';

import ReactDOM from 'react-dom';
import {
    HashRouter,
    Route
} from 'react-router-dom';


 ReactDOM.render((
        <HashRouter>
            <div>
                <Route path="/" render={()=><App items={temasArray}/>}/>
            </div>
        </HashRouter >
    ), document.getElementById('root'));

这是我设法让它在没有任何错误或警告的情况下工作的唯一方法.

如果您想为我的组件传递道具,最简单的方法是:

 <Route path="/" render={()=><App items={temasArray}/>}/>