title: Can't bind to 'ngTemplateOutletContext'
body: <p>I have converted Angular 4 to Angular 6 and I have built the project and geting the following error. Any idea how to handle? </p>
  
  <blockquote>
    <p>Can't bind to 'ngTemplateOutletContext' since it isn't a known
    property of 'ng-container'.</p>
  </blockquote>
  
  <pre><code>&lt;ul *ngIf="item.childrens != undefined &amp;&amp; item.childrens.length &gt; 0"&gt;
     &lt;ng-container *ngTemplateOutletContext="recursiveList; context:{ $implicit: item.childrens }"&gt;&lt;/ng-container&gt;
  &lt;/ul&gt;
  </code></pre>
  
  <p>My question is on <code>TemplateOutletContext</code>, not <code>TemplateOutlet</code>.</p>