eclipse - Example Pager view on android's site not working -

i typing in example on android slider pager

http://developer.android.com/training/animation/screen-slide.html

but getting error on line mpageradapter = new screensliderpageradapter(getfragmentmanager());

error message: contructor * undefined

can explain why items wrong?

code below

import java.util.locale;  import android.app.*; import android.os.bundle;  import android.support.v4.app.fragmentactivity; import android.support.v4.app.fragmentstatepageradapter; import android.support.v4.view.pageradapter; import android.support.v4.view.viewpager; import android.view.gravity; import android.view.layoutinflater; import android.view.menu; import android.view.menuitem; import android.view.view; import android.view.viewgroup; import android.widget.textview;  public class signonactivity extends fragmentactivity  {  private static final int num_pages = 1;  private viewpager mpager;  private pageradapter mpageradapter;  @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_sign_on);      mpager = (viewpager)findviewbyid(r.id.pager);     mpageradapter = new screensliderpageradapter(getfragmentmanager());     mpager.setadapter(mpageradapter);  }  @override public void onbackpressed() {     if (mpager.getcurrentitem() == 0) {         super.onbackpressed();     } else {         mpager.setcurrentitem(mpager.getcurrentitem()-1);     } }    public class screensliderpageradapter extends fragmentstatepageradapter {     public screensliderpageradapter(android.support.v4.app.fragmentmanager fm) {         super(fm);     }      @override     public android.support.v4.app.fragment getitem(int position) {         return new screensliderpagefragment();     }      @override     public int getcount() {         return num_pages;     } }  } 

change : mpageradapter = new screensliderpageradapter(getfragmentmanager());

to : mpageradapter = new screensliderpageradapter(getsupportfragmentmanager());