您无法在另一个 <Router> 内渲染 <Router>。你的应用程序中不应该有多个

Question

import { BrowserRouter, Routes, Route } from "react-router-dom";

//Layouts
import HomeLayoutRoute from "./components/layouts/HomeLayout";

//components
import Home from './components/Home';
//import Dashboard from './components/Dash';

// Routing
import PrivateRoute from "./components/routing/PrivateRoute";

// Screens
import PrivateScreen from "./components/loginscreens/PrivateScreen";
import LoginScreen from "./components/loginscreens/LoginScreen";
import RegisterScreen from "./components/loginscreens/RegisterScreen";
import ForgotPasswordScreen from "./components/loginscreens/ForgotPasswordScreen";
import ResetPasswordScreen from "./components/loginscreens/ResetPasswordScreen";

const App = () => {
  return (
    <BrowserRouter>
      <div className="app">
        <Routes> 
          <HomeLayoutRoute path="/" element={<Home />} />
          <PrivateRoute path="/" element={<PrivateScreen/>} />
          <Route path="/login" element={<LoginScreen/>} />
          <Route path="/register" element={<RegisterScreen/>} />
          <Route path="/forgotpassword" element={<ForgotPasswordScreen/>}/>
          <Route path="/passwordreset/:resetToken" element={<ResetPasswordScreen/>}/>
        </Routes>
      </div>
    </BrowserRouter>
  );
};

export default App;

这是我的 App.js 文件，这是错误：错误：您无法在另一个文件中渲染 a 。您的应用程序中不应有多个。

这段代码适用于 React-Router-Dom 版本 5，但是当我转到 React-Router-Dom 版本 6 时，出现了这个错误。

Answer 1

设置与此类似的 index.js 文件

ReactDOM.render(
  <React.StrictMode>
    <BrowserRouter>
      <Routes>
        <Route path="/" element={ <App /> }>
        </Route>
      </Routes>
    </BrowserRouter>
  </React.StrictMode>,
  document.getElementById('root')
);

然后删除 App.js 文件中的 BrowserRouter

const App = () => {
  return (
      <div className="app">
        <Routes> 
          <HomeLayoutRoute path="/" element={<Home />} />
          <PrivateRoute path="/" element={<PrivateScreen/>} />
          <Route path="/login" element={<LoginScreen/>} />
          <Route path="/register" element={<RegisterScreen/>} />
          <Route path="/forgotpassword" element={<ForgotPasswordScreen/>}/>
          <Route path="/passwordreset/:resetToken" element={<ResetPasswordScreen/>}/>
        </Routes>
      </div>
  );
};

Answer 2

尝试这个！

索引.js

import React from "react";
import ReactDOM from "react-dom";

import { BrowserRouter } from "react-router-dom";

import "./index.css";
import App from "./App";

ReactDOM.render(
  <BrowserRouter>
    <App />
  </BrowserRouter>,
  document.getElementById("root")
);

应用程序.js

请注意，您需要导入 { Routes, Route } 而不是 { Route } （与以前的版本一样）。另请注意，在 App.js 文件中，无需再次导入 BrowserRouter。

import { Routes, Route } from "react-router-dom";

import AllPages from "./pages/AllPages";
import NewContactsPage from "./pages/ContactsPage";
import FavoritesPage from "./pages/Favorites";

function App() {

  return (
    <div>
      <Routes>
        <Route path="/" element={<AllPages />} />
        <Route path="/new-contacts" element={<NewContactsPage />} />
        <Route path="/favorites" element={<FavoritesPage />} />
      </Routes>
    </div>
  );
}

export default App;

Answer 3

一个可能的错误可能是

<BrowserRouter>

您可能已将此元素包含在您的App.js和 Index.js两者中。

您可以检查此元素并将其保留在任何一个文件中，以便嵌套重复的路由删除

希望能帮助到你！