title: Error retrieving parent for item: No resource found that matches the given name 'AppTheme'
body: <p>I am migrating from command line compiling (yikes!) using Ant to Android Studio.  I am seeing the error listed in the Title/Subject line and am not sure on how to proceed.  The error comes from a reference to AppTheme.NoActionBar in v21/values-21.xml.  My build.gradle file shows:   </p>
  
  <pre><code>android {
      compileSdkVersion 25
      buildToolsVersion "25.0.2"
      defaultConfig {
          applicationId "arl.weather.mobile"
          minSdkVersion 15
          targetSdkVersion 25
  </code></pre>
  
  <p>Do I need to alter something here/or is the issue elsewhere?</p>
  
  <p>TIA,
  steve</p>
  
  <p>My edit-It is dying at the AppTheme reference below (part of v21/values-v21.xml file). I wanted to paste the entire file but when I did the formatting went crazy and was unreadable.  I hope this portion helps.</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;resources&gt;
      &lt;color name="notification_action_color_filter"&gt;@color/secondary_text_default_material_light&lt;/color&gt;
      &lt;dimen name="notification_content_margin_start"&gt;0dp&lt;/dimen&gt;
      &lt;dimen name="notification_main_column_padding_top"&gt;0dp&lt;/dimen&gt;
      &lt;dimen name="notification_media_narrow_margin"&gt;12dp&lt;/dimen&gt;
      &lt;style name="AppTheme.NoActionBar"&gt;
          &lt;item name="windowActionBar"&gt;false&lt;/item&gt;
          &lt;item name="windowNoTitle"&gt;true&lt;/item&gt;
          &lt;item name="android:windowDrawsSystemBarBackgrounds"&gt;true&lt;/item&gt;
          &lt;item name="android:statusBarColor"&gt;@android:color/transparent&lt;/item&gt;
      &lt;/style&gt;
  </code></pre>