title: Imported appcompat library has errors
body: <p>I recently updated my SDK, downloaded newest API 21, deleted support library because appcompat project was not present, installed it, and I imported appcompat, just like Google wants me to do it (copied to my workspace, added every jar to build path, configured build path etc.).</p>
  
  <p>Now I am getting errors in <code>android-support-v7-appcompat -&gt; res -&gt; values-v21 -&gt; styles_base.xml</code>, at line:</p>
  
  <pre><code>&lt;style name="Base.Widget.AppCompat.ActionButton"
          parent="android:Widget.Material.ActionButton"&gt;
  &lt;/style&gt;
  </code></pre>
  
  <p>The error is:</p>
  
  <blockquote>
    <p>error: Error retrieving parent for item: No resource found that
    matches the given name 'android:Widget.Material.ActionButton'.</p>
  </blockquote>
  
  <p>Any solutions?</p>