title: the import com.viewpagerindicator cannot be resolved
body: <p>I am a newbie to android. the question maybe silly for you, so forgive me.
  Now i am receiving an android project and open it in ADT.</p>
  
  <p>When open the project there are two errors in two java files, which is <code>the import com.viewpagerindicator cannot be resolved</code> in the Problems. I have searched with google and find it's using <a href="https://github.com/JakeWharton/Android-ViewPagerIndicator" rel="nofollow noreferrer">ViewPagerIndicator</a>. and also the jar name is <code>android-support-v4.jar</code>. I checked the project <code>libs</code> folder there is <code>android-support-v4.jar</code> and it's also in the <code>Android Private Libraries</code>. </p>
  
  <p>I thought maybe it's not configured in the build path. so i checked the <code>Java Build Path</code> tab in the project Properties window, it's also in the Libraries tab. screenshot is as below:
  <img src="https://i.stack.imgur.com/NXUYh.png" alt="enter image description here"></p>
  
  <p>Am i missing anything? Any help would be appreciated.</p>