title: Schematic input does not validate against the Schema on angular 6
body: <p>While generating navigation component on angular 6 I got following error, how can I resolve it.</p>
  
  <pre><code>ng generate @angular/material:material-nav
  </code></pre>
  
  <blockquote>
    <p>Schematic input does not validate against the Schema: {"inlineStyle":false,"inli                                         neTemplate":false,"changeDetection":"Default","styleext":"css","spec":true,"flat                                         ":false,"skipImport":false,"export":false}
    Errors:</p>
    
    <p>Data path "" should have required property 'name'.</p>
  </blockquote>