title: Unable to import specific entry points for Angular Materials since the update on Angular 8
body: <p>I found out here: <a href="https://github.com/angular/components/blob/master/CHANGELOG.md" rel="nofollow noreferrer">Angular changelog</a> that version 8 now requires specific entry points for importing.</p>
  
  <p>However, I keep getting an error unless I downgrade the version of "@angular/cdk" &amp; "@angular/material" in the package.json.</p>
  
  <p>I understand that I can just use this command <code>ng update @angular/material &amp; ng update @angular/cli @angular/core</code> to issue the update. But is giving me an error </p>
  
  <blockquote>
    <p>Cannot find module 'rxjs'</p>
  </blockquote>
  
  <p>I have also updated my node node to version 12.</p>
  
  <p>To simplify things, here is a very simply sample code in <a href="https://stackblitz.com/edit/exercise-basic-c-v3" rel="nofollow noreferrer">stackblitz</a>.</p>
  
  <p>Here, I just added the dependency "@Angular/Material" and imported <code>import {MatToolbarModule} from '@angular/material/toolbar';</code> in the app module to display a simple toolbar.</p>
  
  <p>Although the error produced is different, I believe knowing how to properly import will solve the issue.</p>