React warning error stops compiling the app

Question

I have the following:

nav.jsx component: (everything was working fine till this point)

import React from 'react';

import Link from 'react-router';



class Nav extends React.Component {

 render () {

  return (

   <ul>

    <li><Link to='/test1'>test1</Link></li>

    <li><Link to='/test2'>test2</Link></li>

   </ul>

  );

 }

}



export default Nav;

a routes component as follow:

routes.js

import React from 'react';

import { Route, Router, IndexRoute } from 'react-router';

import ReactDOM from 'react-dom';



import App from './index.jsx';

import Test1 from './test1.jsx';

import Test2 from './test2.jsx';



ReactDOM.render((

<Router>

 <Route path="/" component={App} />

 <Route path="/test1" component={Test1} />

 <Route path="/test2" component={Test2} />

</Router>

), document.getElementById('app'));

and an index.jsx like this:

import React from 'react';

import {render} from 'react-dom';



import Nav from './nav.jsx';



class App extends React.Component {

  render () {

    return (

      <div>

        <Nav />

        <p> Hello React!</p>

      </div>

    );

  }

}



export default App;

however I get the following error in the console:

invariant.js:38 Uncaught Invariant Violation: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined. Check the render method of
Nav
.

Everything was working fine untill I have added the "Nav" component...

Answer 1

import {Link} from 'react-router'

Above should do your job. Can you give it a try once?

React warning error stops compiling the app

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