title: Property binding ngForOf not used by any directive on an embedded template
body: <p>I am doing the lazy loading approach. In that i got this problem</p>
  
  <pre><code>Property binding ngForOf not used by any directive on an embedded template. Make sure that the property name is spelled correctly and all directives are listed in the "@NgModule.declarations".
  </code></pre>
  
  <p>with below code</p>
  
  <pre><code> &lt;li ngFor="let page of pager.pages" [ngClass]="{active:pager.currentPage === page}"&gt;
     &lt;a (click)="setPage(page)"&gt;{{page}}&lt;/a&gt;
   &lt;/li&gt;
  </code></pre>