React-Router only one child

Question

I keep on getting the error:

A \'Router\' may have only one child element

when using react-router.

I can\'t seem to fig

Answer 1

If you are nesting other components inside the Router you should do like.

  <Router>
     <div>
       <otherComponent/>
         <div>
           <Route/>  
           <Route/>
           <Route/>
           <Route/>
         </div>
      </div>
    </Router>

Answer 2

Not sure if my router might be too simple, or there was a change to this rule but was following along a tutorial that mentioned this limitation (A 'Router' may have only one child element) and it allowed me to add 3 routes without giving any errors. This is the working code:

function render() {
  ReactDOM.render(
    <BrowserRouter>
      <Route exact path="/" component={App} />
      <Route path="/add" component={AddAuthorForm} />
      <Route path="/test" component={test} />
    </BrowserRouter>
    ,
    document.getElementById('root')
  );
}

And this are my dependencies:

"react": "^16.13.1",
"react-dom": "^16.13.1",
"react-router-dom": "^5.1.2",
"react-scripts": "3.4.1",

Answer 3

This problem occurs when you don't have parent tag before <Route>inside <Router> so to resolve this problem keep the <Route>enclosed in a parent tag such as <div> , <p> etc. Example -

<Router>
    <p>
       <Route path="/login" component={Login} />
       <Route path="/register" component={Register} />
    </p>
</Router>

Answer 4

If you are using Reach Routers make sure the Code looks like this:

<Router>
    <Login path="/" />
    <Login path="/login" />
</Router>

Including these Components in a Div in the case of React Routers will make this work but In Reach Routers, Remove that Div Element.

Answer 5

This is an API change in react-router 4.x. Recommended approach is to wrap Routes in a Switch: https://github.com/ReactTraining/react-router/issues/4131#issuecomment-274171357

Quoting:

Convert

<Router>
  <Route ...>
  <Route ...>
</Router>

to

<Router>
  <Switch>
    <Route ...>
    <Route ...>
  </Switch>
</Router>

You will, of course, need to add Switch to your imports:

import { Switch, Router, Route } from 'react-router'

Answer 6

I Always use Fragment in react web and native ( >= react 16 )

import React, { Component, Fragment } from 'react'
import { NativeRouter as Routes, Route, Link } from 'react-router-native'
import Navigation from './components/navigation'    
import HomeScreen from './screens/home'
import { RecipesScreen } from './screens/recipe'

class Main extends Component {
  render() {
    return (
      <Fragment>
        <Navigation />
        <Routes>
          <Fragment>
            <Route exact path="/" component={HomeScreen} />
            <Route path="/recipes" component={RecipesScreen} />
          </Fragment>
        </Routes>
      </Fragment>
    )
  }
}

export default Main