title: angular cdk 8.2.3 stepper module does not exports cdkStep?
body: <p>I'm having problems using the cdk stepper module "@angular/cdk": "8.2.3",</p>
  
  <p>I'm coding a component that would make use of cdkStepper</p>
  
  <p>the component is defined in a module that imports CdkStepperModule</p>
  
  <pre><code>&lt;div cdkStepper&gt;
        &lt;cdkStep&gt;&lt;/cdkStep&gt;
   &lt;/div&gt;
  </code></pre>
  
  <p>cdkStep is not a known element:
  If 'cdkStep' is an Angular component, then verify that it is part of this module.</p>