title: How to add recycle view in layout xml
body: <p>I am following this <a href="https://developer.android.com/preview/material/ui-widgets.html" rel="nofollow">link</a>, as mentioned in the link I am trying to add recycle view as follows:</p>
  
  <pre><code> &lt;android.support.v7.widget.RecyclerView
   android:id="@+id/my_recycler_view"
   android:layout_width="match_parent"
   android:layout_height="match_parent"
   android:scrollbars="vertical" /&gt;
  </code></pre>
  
  <p>I have added <code>android-support-v7-appcompat</code> library project and also tried adding <code>recyclerview-v7-21.0.0-rc1.aar</code> to <code>libs</code> but still I am getting following error.</p>
  
  <p><code>The following classes could not be found:
  - android.support.v7.widget.RecyclerView</code></p>
  
  <p>Note: I have updated Android SDK Tools, Android SDK Platform Tools, Android SDK Build Tools, Android L (API 20, L Preview)</p>
  
  <p>please help..</p>