title: Android Support Library appcompat_v7 v21.0.1 gives error
body: <p>Every thing worked fine before updating sdk and support libraries. After updating i just added the support library(mean imported the support library with resources). once i add it i get the following error</p>
  
  <p><strong>Error:</strong></p>
  
  <pre><code>    [2014-11-12 13:28:16 - android-support-v7-appcompat] E:\Android Projects\android-support-v7-appcompat\res\values-v21\styles_base.xml:75: error: Error retrieving parent for item: No resource found that matches the given name 'android:Widget.Material.ActionButton'.
      [2014-11-12 13:28:16 - android-support-v7-appcompat] 
      [2014-11-12 13:28:16 - android-support-v7-appcompat] E:\Android Projects\android-support-v7-appcompat\res\values-v21\styles_base.xml:79: error: Error retrieving parent for item: No resource found that matches the given name 'android:Widget.Material.ActionButton.CloseMode'.
      [2014-11-12 13:28:16 - android-support-v7-appcompat] 
      [2014-11-12 13:28:16 - android-support-v7-appcompat] E:\Android Projects\android-support-v7-appcompat\res\values-v21\styles_base.xml:83: error: Error retrieving parent for item: No resource found that matches the given name 'android:Widget.Material.ActionButton.Overflow'.
      [2014-11-12 13:28:16 - android-support-v7-appcompat] 
      [2014-11-12 13:28:16 - android-support-v7-appcompat] E:\Android Projects\android-support-v7-appcompat\res\values-v21\styles_base.xml:25: error: Error retrieving parent for item: No resource found that matches the given name 'android:Widget.Material.ActionBar.TabView'.
      [2014-11-12 13:28:16 - android-support-v7-appcompat] 
      [2014-11-12 13:28:16 - android-support-v7-appcompat] E:\Android Projects\android-support-v7-appcompat\res\values-v21\styles_base.xml:29: error: Error retrieving parent for item: No resource found that matches the given name 'android:Widget.Material.Light.ActionBar.TabView'.
      [2014-11-12 13:28:16 - android-support-v7-appcompat] 
      [2014-11-12 13:28:16 - android-support-v7-appcompat] E:\Android Projects\android-support-v7-appcompat\res\values-v17\styles_rtl.xml:20: error: Error: No resource found that matches the given name: attr 'android:layout_marginStart'.
      [2014-11-12 13:28:16 - android-support-v7-appcompat] 
      [2014-11-12 13:28:16 - android-support-v7-appcompat] E:\Android Projects\android-support-v7-appcompat\res\values-v17\styles_rtl.xml:25: error: Error: No resource found that matches the given name: attr 'android:paddingEnd'.
      [2014-11-12 13:28:16 - android-support-v7-appcompat] 
      [2014-11-12 13:28:16 - android-support-v7-appcompat] E:\Android Projects\android-support-v7-appcompat\res\values-v17\styles_rtl.xml:24: error: Error: No resource found that matches the given name: attr 'android:paddingStart'.       
      [2014-11-12 13:28:16 - android-support-v7-appcompat] E:\Android Projects\android-support-v7-appcompat\res\values-v21\themes_base.xml:26: error: Error retrieving parent for item: No resource found that matches the given name 'android:Theme.Material'.
      [2014-11-12 13:28:16 - android-support-v7-appcompat] 
      [2014-11-12 13:28:16 - android-support-v7-appcompat] E:\Android Projects\android-support-v7-appcompat\res\values-v21\themes_base.xml:31: error: Error retrieving parent for item: No resource found that matches the given name 'android:Theme.Material.Light'.
      [2014-11-12 13:28:16 - android-support-v7-appcompat] 
      [2014-11-12 13:28:16 - android-support-v7-appcompat] E:\Android Projects\android-support-v7-appcompat\res\values-v21\themes_base.xml:36: error: Error retrieving parent for item: No resource found that matches the given name 'android:Theme.Material.Dialog'.
      [2014-11-12 13:28:16 - android-support-v7-appcompat] 
      [2014-11-12 13:28:16 - android-support-v7-appcompat] E:\Android Projects\android-support-v7-appcompat\res\values-v21\themes_base.xml:41: error: Error retrieving parent for item: No resource found that matches the given name 'android:Theme.Material.Light.Dialog'.
      [2014-11-12 13:28:16 - android-support-v7-appcompat] 
      [2014-11-12 13:28:16 - android-support-v7-appcompat] E:\Android Projects\android-support-v7-appcompat\res\values-v11\themes_base.xml:338: error: Error: No resource found that matches the given name: attr 'android:actionModeShareDrawable'.
  </code></pre>
  
  <p><strong>After changing my Build Target to 21 from 17 i get these errors</strong></p>
  
  <pre><code>[2014-11-12 13:33:15 - android-support-v7-appcompat] E:\Android Projects\android-support-v7-appcompat\res\values-large-v14\themes_base.xml:19: error: Error retrieving parent for item: No resource found that matches the given name 'Theme.Base.AppCompat.DialogWhenLarge.Base'.
  [2014-11-12 13:33:15 - android-support-v7-appcompat] 
  [2014-11-12 13:33:15 - android-support-v7-appcompat] E:\Android Projects\android-support-v7-appcompat\res\values-large-v14\themes_base.xml:22: error: Error retrieving parent for item: No resource found that matches the given name 'Theme.Base.AppCompat.Light.DialogWhenLarge.Base'.
  [2014-11-12 13:33:15 - android-support-v7-appcompat]
  </code></pre>
  
  <p>I tried a lot of things like importing the project again changing the project.properties file etc., I am not able to solve the issue </p>
  
  <p>please help me out thanks in advance.</p>