title: Android Studio export apk error: Error: Expected resource of type styleable [ResourceType]
body: <p>in android studio, when i want generate <strong>signed</strong> apk, Leads to the following error:</p>
  
  <p><code>Error:Error: Expected resource of type styleable [ResourceType]</code></p>
  
  <p>this Class is: <a href="https://github.com/astuetz/PagerSlidingTabStrip" rel="nofollow">https://github.com/astuetz/PagerSlidingTabStrip</a></p>
  
  <p>How can I fix the error?</p>
  
  <p><code>PagerSlidingTabStrip</code> class:</p>
  
  <p><a href="https://github.com/astuetz/PagerSlidingTabStrip/blob/master/library/src/com/astuetz/PagerSlidingTabStrip.java" rel="nofollow">https://github.com/astuetz/PagerSlidingTabStrip/blob/master/library/src/com/astuetz/PagerSlidingTabStrip.java</a></p>
  
  <p>`values/attrs.xml</p>
  
  <p><a href="https://github.com/astuetz/PagerSlidingTabStrip/blob/master/library/res/values/attrs.xml" rel="nofollow">https://github.com/astuetz/PagerSlidingTabStrip/blob/master/library/res/values/attrs.xml</a></p>