router createElement and render fail
I am exploring react-router and ran into a very basic issue. The frustrating part is I am using react-router in another app and it works fine!!.
I get this error in console. What am I missing here?
Warning: React.createElement: type should not be null, undefined, boolean, or number. It should be a string (for DOM elements) or a ReactClass (for composite components).
Uncaught Invariant Violation: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object.
var React = require('react');
var ReactDOM = require('react-dom');
var Router = require('react-router');
var Route = require('react-router').Route;
var hashHistory = require('react-router').hashHistory;
var App = React.createClass({
render: function() {
return <div>App Rendered from React Router!</div>
}
});
//this works - there is nothing wrong with App component
// ReactDOM.render((
// <App/>
// ), document.getElementById('app'));
//This works - just so I understand the basics
// var Child = React.createElement('div',{className:'child'});
// var Parent = React.createElement('div',{className:'parent'},Child);
// ReactDOM.render(Parent, document.getElementById('app'));
//this doesn't work - copy pasted from tutorial
ReactDOM.render((
<Router history={hashHistory}>
<Route path="/" component={App}/>
</Router>
), document.getElementById('app'));
//Babel transpiled code
// ReactDOM.render(React.createElement(
// Router,
// { history: hashHistory },
// React.createElement(Route, { path: '/', component: App })
// ), document.getElementById('app'));
//this doesn't work
// var route = React.createElement(Route, { path: '/', component: App });
// var router = React.createElement(Router,{ history: hashHistory });
//
// ReactDOM.render(router, document.getElementById('app'));
你需要导入Router如
var Router = require('react-router').Router
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