title: Property does not exist on type when using Material-ui-next
body: <p>When trying to render a TextField from <a href="https://material-ui-next.com/demos/text-fields/" rel="noreferrer">material-ui-next</a> website using React 16.3 and TypeScript I'm getting the following error:</p>
  
  <pre><code>Property 'label' does not exist on type 'IntrinsicAttributes &amp; IntrinsicClassAttributes&lt;TextField&gt; &amp; Readonly&lt;{ children?: ReactNode; }&gt; 
  </code></pre>
  
  <p>My component's tests are passing but it does not build.</p>
  
  <pre><code>&lt;TextField
        id="name"
        label="Name"
        className={classes.textField}
        value={this.state.name}
        onChange={this.handleChange('name')}
        margin="normal"
      /&gt;
  </code></pre>
  
  <p><strong>EDIT: 5.04.2018</strong></p>
  
  <p>I found the cause of this error. I had a package <strong>@types/material-ui</strong> installed which for some reason had a higher priority by TypeScript than type definitions inside the actual material-ui package. 
  I removed it and everything works just fine.</p>