Reactjs 我是react的新手,我安装了react路由dom,然后出现了这个错误 从“React”导入React; 从“react Router dom”导入{BrowserRouter as Router,Route,Switch}; 导入“/App.css”; 从“./components/layout/Navbar”导入导航栏 从“./components/layout/Index”导入索引; 常量应用=()=>{ 返回( ); } 导出默认应用程序;
我犯了这样的错误------------ 错误:元素类型无效:应为字符串(对于内置 组件)或类/函数(用于复合组件),但得到: 反对Reactjs 我是react的新手,我安装了react路由dom,然后出现了这个错误 从“React”导入React; 从“react Router dom”导入{BrowserRouter as Router,Route,Switch}; 导入“/App.css”; 从“./components/layout/Navbar”导入导航栏 从“./components/layout/Index”导入索引; 常量应用=()=>{ 返回( ); } 导出默认应用程序;,reactjs,Reactjs,我犯了这样的错误------------ 错误:元素类型无效:应为字符串(对于内置 组件)或类/函数(用于复合组件),但得到: 反对 检查应用程序的渲染方法尝试此操作。开关内部应为路由非反应 import React from 'react'; import { BrowserRouter as Router, Route, Switch } from 'react-router-dom'; import './App.css'; import Navbar from './components
检查
应用程序的渲染方法
尝试此操作。开关内部应为路由
非反应
import React from 'react';
import { BrowserRouter as Router, Route, Switch } from 'react-router-dom';
import './App.css';
import Navbar from './components/layout/Navbar'
import Index from './components/layout/Index';
const App = () => {
return (
<Router>
<React.Fragment>
<Navbar />
<div className="container">
<Switch>
<React exact path="/" component={Index} />
</Switch>
</div>
</React.Fragment>
</Router>
);
}
export default App;
从“React”导入React;
从“react Router dom”导入{BrowserRouter as Router,Route,Switch};
导入“/App.css”;
从“./components/layout/Navbar”导入导航栏
从“./components/layout/Index”导入索引;
常量应用=()=>{
返回(
);
}
导出默认应用程序;
import React from 'react';
import { BrowserRouter as Router, Route, Switch } from 'react-router-dom';
import './App.css';
import Navbar from './components/layout/Navbar'
import Index from './components/layout/Index';
const App = () => {
return (
<Router>
<Navbar />
<div className="container">
<Switch>
<Route exact path="/" component={Index} />
</Switch>
</div>
</Router>
);
}
export default App;