You should not use or withrouter() outside a in React Router

React Router is an external library for React that allows us to link specific URLs and display various components depending on which URL is displayed for server-side rendering.

This article will show you a few possible solution to You should not use <route> or withrouter() outside a <router> in React Router error, so you can try applying and see whether they do the trick.

Sometimes, the error message would look like this :

Invariant Violation: You should not use <Route> or withRouter() outside a <Router>

Solution 1 : Define BrowserRouter in index.js to use route or withrouter() everywhere

Usually, React Router throws You should not use <route> or withrouter() outside a <router> to warn that BrowserRouter have not been defined and you are using Link or NavLink or Router components.

Usually we want navigation over our entire app. In order to do that, we declare BrowserRouter in index.js file.

In index.js file, import BrowserRouter from react-router-dom package and wrap the App component in it.

import React from 'react';
import ReactDOM from "react-dom";
import App from './App';
import {BrowserRouter} from 'react-router-dom';

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

Now you can easily use Link, NavLink, Route etc. anywhere in your project without seeing You should not use <route> or withrouter() outside a <router> ever again.

Solution 2 : Use Route to wrap App components

Alternatively, you can wrap App inside Router as it’s the correct way from React Router documentation. For example, with react-dom you need to wrap the app in Browser-Router. If this is a Udacity project, this is typically the index.js file.

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

const Root = () => {
    return (
        <BrowserRouter basename='/'>
            <Route path={/} component={App}></Route>
        </BrowserRouter>
    )

}

ReactDOM.render(<Root/>, document.getElementById('root'));