title: NoSuchMethodError: No virtual method removeOnPageChangeListener
body: <p>I am using <a href="https://github.com/ongakuer/CircleIndicator" rel="noreferrer">ongakuer/CircleIndicator</a> library to add viewpager indicators. I have used the sample code as it is except changing a small <a href="https://github.com/ongakuer/CircleIndicator/blob/master/sample/src/main/java/me/relex/circleindicatorsample/ViewpagerActivity.java#L28" rel="noreferrer">code</a> from <code>customViewpager.addOnPageChangeListener</code>to <code>customViewpager.setOnPageChangeListener</code>because it was showing compile error. After that there was no compile error. </p>
  
  <p>When I run the activity, I straightaway get the following error:</p>
  
  <pre><code>java.lang.NoSuchMethodError: No virtual method removeOnPageChangeListener(Landroid/support/v4/view/ViewPager$OnPageChangeListener;)V in class Landroid/support/v4/view/ViewPager; or its super classes (declaration of 'android.support.v4.view.ViewPager' appears in /data/app/com.app.app-2/base.apk)
              at me.relex.circleindicator.CircleIndicator.setViewPager(CircleIndicator.java:127)
              at com.app.app.ViewpagerActivity.onCreate(ViewpagerActivity.java:24)
              at android.app.Activity.performCreate(Activity.java:5990)
              at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106)
              at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2278)
              at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387)
              at android.app.ActivityThread.access$800(ActivityThread.java:151)
              at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303)
              at android.os.Handler.dispatchMessage(Handler.java:102)
              at android.os.Looper.loop(Looper.java:135)
              at android.app.ActivityThread.main(ActivityThread.java:5254)
              at java.lang.reflect.Method.invoke(Native Method)
              at java.lang.reflect.Method.invoke(Method.java:372)
              at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
              at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
  </code></pre>