title: No resource found that matches the given name 'android:Theme.Material.Light.DarkActionBar'
body: <p>I try to change my HelloWorld Application holo theme to Material.Light.DarkActionBar theme(As said by What's new Android Development tools session). But I got following error. I try to change target SDK version is 21. But We didn't have 21 SDK in SDK Manager. In that session,they said,set style xml for v-21.</p>
  
  <p><strong>values/styles.xml</strong></p>
  
  <pre><code>&lt;resources&gt;
  
      &lt;!-- Base application theme. --&gt;
      &lt;style name="AppTheme" parent="android:Theme.Holo.Light.DarkActionBar"&gt;
          &lt;!-- Customize your theme here. --&gt;
      &lt;/style&gt;
  
  &lt;/resources&gt;
  </code></pre>
  
  <p><strong>values-v21/styles.xml</strong></p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;resources&gt;
  
      !-- Base application theme. --&gt;
      &lt;style name="AppTheme" parent="android:Theme.Material.Light.DarkActionBar"&gt;
          &lt;!-- Customize your theme here. --&gt;
      &lt;/style&gt;
  &lt;/resources&gt;
  </code></pre>
  
  <p><strong>build.gradle</strong></p>
  
  <pre><code>apply plugin: 'com.android.application'
  
  android {
      compileSdkVersion 20
      buildToolsVersion "20.0.0"
  
      defaultConfig {
          applicationId "com.ramapps.helloworld"
          minSdkVersion 15
          targetSdkVersion 20
          versionCode 1
          versionName "1.0"
      }
      buildTypes {
          release {
              runProguard false
              proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
          }
      }
  }
  
  dependencies {
      compile fileTree(dir: 'libs', include: ['*.jar'])
  }
  </code></pre>
  
  <p><strong>Error:</strong></p>
  
  <pre><code>Error:Error retrieving parent for item: No resource found that matches the given name 'android:Theme.Material.Light.DarkActionBar'.
  Error:Execution failed for task ':app:processDebugResources'.
  &gt; com.android.ide.common.internal.LoggedErrorException: Failed to run command:
      /Applications/Android Studio.app/sdk/build-tools/android-4.4W/aapt package -f --no-crunch -I /Applications/Android Studio.app/sdk/platforms/android-20/android.jar -M /Users/Ram_PC/Ram/MyDrive/My_Workspaces/Android_Studio_Workspace_L/HelloWorld/app/build/intermediates/manifests/debug/AndroidManifest.xml -S /Users/Ram_PC/Ram/MyDrive/My_Workspaces/Android_Studio_Workspace_L/HelloWorld/app/build/intermediates/res/debug -A /Users/Ram_PC/Ram/MyDrive/My_Workspaces/Android_Studio_Workspace_L/HelloWorld/app/build/intermediates/assets/debug -m -J /Users/Ram_PC/Ram/MyDrive/My_Workspaces/Android_Studio_Workspace_L/HelloWorld/app/build/generated/source/r/debug -F /Users/Ram_PC/Ram/MyDrive/My_Workspaces/Android_Studio_Workspace_L/HelloWorld/app/build/intermediates/libs/app-debug.ap_ --debug-mode --custom-package com.ramapps.helloworld -0 apk
    Error Code:
      1
    Output:
      /Users/Ram_PC/Ram/MyDrive/My_Workspaces/Android_Studio_Workspace_L/HelloWorld/app/build/intermediates/res/debug/values-v21/values.xml:7: error: Error retrieving parent for item: No resource found that matches the given name 'android:Theme.Material.Light.DarkActionBar'.
  </code></pre>