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utils.ts:757 Uncaught Error: [div] is not a <Route> component

I try to make a route of Register and Login components inside a div(className='container') in react-router v6, but when i try to access these components I reach a blank page, then when i rid the div class it works very well, i don't know if the problem from the div. please help me to fix it:
this is my code:
enter code here
import './App.css';
import Navbar from './components/layout/Navbar';
import Footer from './components/layout/Footer';
import Landing from './components/layout/Landing';
import {BrowserRouter as Router, Outlet, Routes, Route} from "react-router-dom";
import Register from "./components/auth/Register";
import Login from "./components/auth/Login";
function App() {
return (
<Router >
<div className="App">
<Navbar />
<Routes>
<Route path="/" element={<Landing />} />
<div className="container">
<Route path="/register" element={<Register />} />
<Route path="/login" element={<Login />} />
</div>
</Routes>
<Footer />
</div>
</Router>
);
}
export default App;
import React, { Component } from 'react';
import {Outlet} from 'react-router-dom';
class Register extends Component {
render() {
return (
<div >
<h1>Register</h1>
</div>
)
}
}
export default Register;
import React, { Component } from 'react';
import {Outlet} from 'react-router-dom';
class Login extends Component {
render() {
return (
<div>
<h2>Login</h2>
</div>
)
}
}
export default Login;
import React, { Component } from 'react';
import { Link, Outlet } from "react-router-dom";
class Landing extends Component {
render() {
return (
<div className="landing">
<div className="dark-overlay landing-inner text-light">
<div className="container">
<div className="row">
<div className="col-md-12 text-center">
<h1 className="display-3 mb-4">Developer Connector
</h1>
<p className="lead"> Create a developer profile/portfolio, share posts and get help from other developers</p>
<hr />
<Link to="/register" className="btn btn-lg btn-info mr-2">Sign Up</Link>
<Link to="/login" className="btn btn-lg btn-light">Login</Link>
</div>
</div>
</div>
</div>
</div>
)
}
};
export default Landing;

When you try to put a DIV object as a route, the problem occurs.
I suggest you remove the DIV from the APP component and put it inside each page (register, login) as needed.
Wish you the best!
import './App.css';
import Navbar from './components/layout/Navbar';
import Footer from './components/layout/Footer';
import Landing from './components/layout/Landing';
import {BrowserRouter as Router, Outlet, Routes, Route} from "react-router-dom";
import Register from "./components/auth/Register";
import Login from "./components/auth/Login";
function App() {
return (
<Router >
<div className="App">
<Navbar />
<Routes>
<Route path="/" element={<Landing />} />
<Route path="/register" element={<Register />} />
<Route path="/login" element={<Login />} />
</Routes>
<Footer />
</div>
</Router>
);
}
export default App;

Don't use div inside Routes. Use Route with some custom components.

React page not refreshing automatically when using Router

I've been working on my first React project and used react-router to navigate to different pages. Although I have reached the functionality, I have found that I have to manually refresh the page (using F5) whenever I press the link (for eg. About or Shop in the following code) to load the content.
Here's my Code
App.js
import React from "react";
import Nav from "./Nav";
import Shop from "./Shop";
import About from "./About";
import Home from "./Home";
import { BrowserRouter as Router, Route, Switch } from "react-router-dom";
import "../App.css";
function App() {
return (
<Router>
<div className="App">
<Nav />
<Switch>
<Route path="/" exact component={Home} />
<Route path="/about" component={About} />
<Route path="/shop" component={Shop} />
</Switch>
</div>
</Router>
);
}
export default App;
Nav.js
import React from "react";
import { BrowserRouter as Router, Link } from "react-router-dom";
import "../App.css";
function Nav() {
return (
<nav>
<h3>Adifier</h3>
<ul className="nav-links">
<Router>
<Link to="/about">
<li>About</li>
</Link>
<Link to="/shop">
<li>Shop</li>
</Link>
</Router>
</ul>
</nav>
);
}
export default Nav;
About.js
import React from "react";
function About() {
return (
<div className="App">
<h1>About Page</h1>
</div>
);
}
export default About;
Shop.js
import React from "react";
function Shop() {
return (
<div className="App">
<h1>Shop Page</h1>
</div>
);
}
export default Shop;
Thanks in advance

Remove Router from Nav.js. It has already served its purpose when you defined routes in app.js
<ul className="nav-links">
<Link to="/about">
<li>About</li>
</Link>
<Link to="/shop">
<li>Shop</li>
</Link>
</ul>

Why React routing not working in component?

I'm working on a React web application using React router.
In my App.js file i have imported header and home component.
In home component i have 2 components called Onlinebanks and Creditcard that i imported from online-banks.js and creditcard.js files.
When the user clicks link buttons in home.js component, the Onlinebanks and Creditcard components should render.
Instead i am getting an error called Error: Invariant failed: You should not use < Link> outside a < Router>.
Why it's not working?
INDEX.JS
import React from 'react';
import ReactDOM from 'react-dom';
import './index.css';
import App from './App';
ReactDOM.render(<App />, document.getElementById('root'));
APP.JS
import React, { Component } from 'react';
import './App.css';
import Header from './components/header';
import Home from './components/home';
class Routes extends Component {
constructor(props){
super(props);
this.state = {
};
}
render(){
return (
<div className="wrapper">
<Header/>
<Home/>
</div>
);
}
}
export default Routes;
HOME.JS
import React from 'react';
import { Route, Switch, Link } from 'react-router-dom';
import Onlinebanks from './online-banks';
import Creditcard from './creditcard';
const Home = (props) => {
return (
<div className="section">
<div className="main-page">
<div className="tab-container">
<div className="tab-btns">
<Link to="/">
<div className="online-bank-btn">
Online pangad
</div>
</Link>
<Link to="/creditcard">
<div className="creditcard-btn">
Krediitkaart
</div>
</Link>
</div>
<Switch>
<Route path="/" exact component={Onlinebanks}/>
<Route path="/creditcard" exact component={Creditcard}/>
</Switch>
</div>
</div>
</div>
)
}
export default Home;
ONLINE-BANKS.JS
import React from 'react';
const Onlinebanks = (props) => {
return (
<div className="banks-container">
<input type="button" value="Pay" className="pay-btn" id="online-banks-pay"></input>
</div>
)
}
export default Onlinebanks;
CREDITCARD.JS
import React from 'react';
const Creditcard = (props) => {
return (
<div className="Creditcard-container">
<input type="button" value="Pay" className="pay-btn" id="creditcard-pay"></input>
</div>
)
}
export default Creditcard;

I don't see anywhere in your code where you imported BrowserRouter from react-router-dom which should wrap all the other components rendered by your top level componet (app.js) or entirely wrap the app component. so, first import { BrowserRouter as Router } from "react-router-dom" in index.js, then wrap App component with Router as follows
ReactDOM.render(<Router> <App /> </Router>, document.getElementById("root"));
alternatively you can wrap the retun statment in app.js with Router as follows after importing BrowserRouter as Router
return (
<Router>
<div className="wrapper">
<Header/>
<Home/>
</div>
</Router>
);

<Router> is an HOC component, so you need to use it at the top most level possible. Suggestion would be to create a separate Router component and use it within App.js file above div tag
<CustomRouter>
<div className="wrapper">
<Header/>
<Home/>
</div>
</CustomRouter>

you need to better understand how react-router-dom works.
visit here for complete routing guide react-router-dom
i found some major missings in your app.js file.
import {
BrowserRouter as Router,
Switch,
Route,
Link
} from "react-router-dom";
<Switch>
<Route exact path="/">
<Home />
</Route>
<Route path="/about">
<About />
</Route>
<Route path="/dashboard">
<Dashboard />
</Route>
</Switch>
i don't see this method in your app.js .

Why isn't my navigation bar rendering in React?

This is the code I have, I believe I have imported everything correctly, I am using React mdl to style it and copied and pasted the navbar code.
I also installed react dom router correctly, the individual pages display but the navbar itself doesn't on the landing page.
Can anyone help me? Thanks
App.js
import React, { Component } from "react";
import "./App.css";
import { Layout, Header, Navigation, Drawer, Content } from "react-mdl";
import Earth from "./earth.jpg";
import Main from "./components/main";
import { Link } from "react-router-dom";
class App extends Component {
render() {
return (
<div style={{ height: "300px", position: "relative" }}>
<Layout style={{ background: "src{Earth} center / cover" }}>
<Header transparent title="Title" style={{ color: "white" }}>
<Navigation>
Link
Link
Link
Link
</Navigation>
</Header>
<Drawer title="Title">
<Navigation>
<Link to="/aboutme">About Us</Link>
<Link to="/projects">Projects</Link>
<Link to="/resume">Resume</Link>
<Link to="/contact">Contact</Link>
</Navigation>
</Drawer>
<Content>
<div className="page-content">
<Main />
</div>
</Content>
</Layout>
</div>
);
}
}
export default App;
main.js
import React from 'react';
import { Switch, Route} from 'react-router-dom';
import LandingPage from './landingpage';
import AboutMe from './aboutme';
import Contact from './contact';
import Projects from './projects';
import Resume from './resume';
const Main = () => (
<Switch>
<Route exact path="/" component = {LandingPage} />
<Route path="/aboutme" component = {AboutMe} />
<Route path="/contact" component = {Contact} />
<Route path="/projects" component = {Projects} />
<Route path="/resume" component = {Resume} />
</Switch>
)
export default Main;
index.js
import React from 'react';
import ReactDOM from 'react-dom';
import './index.css';
import App from './App';
import * as serviceWorker from './serviceWorker';
import 'react-mdl/extra/material.css';
import 'react-mdl/extra/material.js';
import { BrowserRouter } from 'react-router-dom';
ReactDOM.render(
<BrowserRouter>
<App />
</BrowserRouter>
, document.getElementById('root'));
serviceWorker.unregister();

You need to wrap your App component with BrowserRouter from react-router-dom.
You can do this inside you App component, or better in index.js like this:
import { BrowserRouter } from "react-router-dom";
ReactDOM.render(<BrowserRouter><App/></BrowserRouter>, rootElement);
Codesandbox:
https://codesandbox.io/s/so-react-router-uc8dr

ReactJS App Does not return the correct page

So I am new to ReactJS and is trying to figure it things how to have an app with a different header for the login page and then another header once the user was logged in.
I only want to have the very first page to have the LoginHeader and then the PostHeader as the main header once they get authenticated.
However, when I am on the my login page, whenever I click the sign in button I automatically get taken to my PostHeader page even though I routed my correct link. Everything in the PostHeader works fine, like when I click Home and Create they return the pages they are supposed.
My code is down below
index.js
import React from 'react';
import createHistory from 'history/createBrowserHistory';
import ReactDOM from 'react-dom';
import { Route, Switch, Router } from 'react-router-dom';
import Header from "./_components/header/header";
ReactDOM.render(
<Router history={createHistory()}>
<div>
<Header />
</div>
</Router>,
document.getElementById('root'),
);
Header.js
import React, {Component} from 'react';
import {Link,Route,withRouter, Switch, } from 'react-router-dom';
import PostHeader from './PostHeader';
import LoginHeader from './LoginHeader';
class Header extends Component{
render(){
if (window.location.pathname === '/') {
return(
<LoginHeader />
);
};
return(
<PostHeader />
);
}
}
export default Header;
LoginHeader.js
import React, {Component} from 'react';
import {Link,Route,withRouter, Switch} from 'react-router-dom';
import SignIn from '../signin/signin';
import TopProjects from '../create_projects/top_projects';
class LoginHeader extends Component{
render(){
return(
<div className="container">
<div>
<h3>The Web App</h3>
<nav>
<ul>
<li><Link to="/sign-in">Sign In?</Link></li>
<li><Link to="/top-projects">Top Projects</Link></li>
</ul>
</nav>
<hr />
</div>
<Switch>
<Route exact path="/sign-in" component={SignIn}/>
<Route path="/top-projects" component={TopProjects} />
</Switch>
</div>
);
}
}
export default LoginHeader;
PostHeader.js
import React, {Component} from 'react';
import {Link,Route} from 'react-router-dom';
import Home from '../home/home';
import CreateProjects from '../create_projects/create_projects';
class PostHeader extends Component{
render(){
return(
<div className="container">
<div>
<h3>The Web App</h3>
<nav>
<ul>
<li><Link to="/home">Home</Link></li>
<li><Link to="/create-projects">Create</Link></li>
</ul>
</nav>
<hr />
</div>
<Route path="/home" component={Home}/>
<Route path="/create-projects" component={CreateProjects} />
</div>
);
}
}
export default PostHeader;
I just want to have different headers for some pages.

That's because in your Header.js, you are only rendering the LoginHeader if you are in the root route.
if (window.location.pathname === '/') {
return(
<LoginHeader />
);
};
So when you click the sign in button, it redirects you to /sign-in, thus when Header is re-rendered, the condition will fall on the else statement which returns the PostHeader.