title: mat-form-field must contain a MatFormFieldControl. even i added MatFormFieldModule
body: <p>Here im new to Angular Material please help me why im getting Error. I was copied code from <a href="https://material.angular.io/components/form-field/examples" rel="nofollow noreferrer">https://material.angular.io/components/form-field/examples</a></p>
  
  <pre><code>&lt;div class="example-container"&gt;
    &lt;mat-form-field&gt;
      &lt;input matInput placeholder="Input"&gt;
    &lt;/mat-form-field&gt;
  
    &lt;mat-form-field&gt;
      &lt;textarea matInput placeholder="Textarea"&gt;&lt;/textarea&gt;
    &lt;/mat-form-field&gt;
  
    &lt;mat-form-field&gt;
      &lt;mat-select placeholder="Select"&gt;
        &lt;mat-option value="option"&gt;Option&lt;/mat-option&gt;
      &lt;/mat-select&gt;
    &lt;/mat-form-field&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>This is the same code which i copied from that url
  <strong>App.module.ts</strong></p>
  
  <pre><code>import {MatFormFieldModule} from '@angular/material/form-field';
  import {MatInputModule} from '@angular/material/input';
    imports: [
  MatFormFieldModule,MatInputModule]
  </code></pre>