Error setting up LinePageIndicator inside Fragment - Android Studio -

i using jake wharton's viewpagerindicator add linepageindicator within viewpager. problem having when follow usage instructions following errors (cannot resolve method 'findviewbyid(int)' & 'getsupportfragmentmanager()') in area:

@override     public view oncreateview(layoutinflater inflater, viewgroup container,                              bundle savedinstancestate) {          view rootview = inflater.inflate(r.layout.lay_menufragment, container, false);          //galeria de imagenes          msectionspageradapter = new sectionspageradapter(getchildfragmentmanager());          mviewpager = (viewpager) rootview.findviewbyid(r.id.pager);         msectionspageradapter.addfragments(placeholderfragment.newinstance(imagenes[0]));         msectionspageradapter.addfragments(placeholderfragment.newinstance(imagenes[1]));         msectionspageradapter.addfragments(placeholderfragment.newinstance(imagenes[2]));          mviewpager.setadapter(msectionspageradapter);          //set pager adapter         viewpager pager = (viewpager)findviewbyid(r.id.pager);         pager.setadapter(new sectionspageradapter(getsupportfragmentmanager()));          //bind title indicator adapter         linepageindicator lineindicator = (linepageindicator)findviewbyid(r.id.lines);         lineindicator.setviewpager(pager);          return rootview;      } 

here full code of fragment:

import android.content.context; import android.content.intent; import android.support.v4.app.fragmentmanager; import android.support.v4.app.fragmentpageradapter; import android.support.v4.view.viewpager; import android.util.log; import android.view.layoutinflater; import android.widget.imageview; import android.support.v4.app.fragment; import android.os.bundle; import android.view.view; import android.view.viewgroup; import android.view.view.onclicklistener;  import com.viewpagerindicator.linepageindicator;  import java.util.list; import java.util.arraylist;  public class fmmenu extends fragment {      int[] imagenes = {             r.drawable.jeans,             r.drawable.blusas,             r.drawable.leggings,     };      sectionspageradapter msectionspageradapter;     viewpager mviewpager;      @override     public view oncreateview(layoutinflater inflater, viewgroup container,                              bundle savedinstancestate) {          view rootview = inflater.inflate(r.layout.lay_menufragment, container, false);          //galeria de imagenes          msectionspageradapter = new sectionspageradapter(getchildfragmentmanager());          mviewpager = (viewpager) rootview.findviewbyid(r.id.pager);         msectionspageradapter.addfragments(placeholderfragment.newinstance(imagenes[0]));         msectionspageradapter.addfragments(placeholderfragment.newinstance(imagenes[1]));         msectionspageradapter.addfragments(placeholderfragment.newinstance(imagenes[2]));          mviewpager.setadapter(msectionspageradapter);          //set pager adapter         viewpager pager = (viewpager)findviewbyid(r.id.pager);         pager.setadapter(new sectionspageradapter(getsupportfragmentmanager()));          //bind title indicator adapter         linepageindicator lineindicator = (linepageindicator)findviewbyid(r.id.lines);         lineindicator.setviewpager(pager);          return rootview;      }      public class sectionspageradapter extends fragmentpageradapter {          list<fragment> fragmentos;         public sectionspageradapter(fragmentmanager fm) {             super(fm);             fragmentos = new arraylist<fragment>();         }          public void addfragments(fragment xfragment){             fragmentos.add(xfragment);         }           @override         public fragment getitem(int position) {             return fragmentos.get(position);         }          @override         public int getcount() {             return fragmentos.size();         }       }       public static class placeholderfragment extends fragment implements view.onclicklistener {          private static final string arg_image = "imagen";         private int imagen;          public static placeholderfragment newinstance(int imagen) {             placeholderfragment fragment = new placeholderfragment();             bundle args = new bundle();             args.putint(arg_image, imagen);             fragment.setarguments(args);             fragment.setretaininstance(true);             return fragment;         }          public void onclick(view v){          }          @override         public void oncreate(bundle savedinstancestate) {             super.oncreate(savedinstancestate);             if(getarguments() != null) {                 imagen = getarguments().getint(arg_image);             }         }          public placeholderfragment() {         }          @override         public view oncreateview(layoutinflater inflater, viewgroup container,                                  bundle savedinstancestate) {             view rootview = inflater.inflate(r.layout.fragment_menu, container, false);              imageview mainimages = (imageview) rootview.findviewbyid(r.id.imageview1);             mainimages.setimageresource(imagen);              mainimages.setonclicklistener(new onclicklistener() {                  @override                 public void onclick(view v) {                      intent activityintent = new intent();                      intent intent = new intent();                      switch(imagen){                         case r.drawable.jeans:                             intent = new intent(getactivity(), jeansactivity.class);                             break;                         case r.drawable.blusas:                             intent = new intent(getactivity(), blusasactivity.class);                             break;                         case r.drawable.leggings:                             intent = new intent(getactivity(), leggingsactivity.class);                             break;                     }                      startactivity(intent);                  }               });              return rootview;         }     }  } 

i following error in layout when implement com.viewpagerindicator.linepageindicator:

java.lang.noclassdeffounderror: com/viewpagerindicator/r$attr     @ com.viewpagerindicator.linepageindicator.<init>(linepageindicator.java:62)     @ sun.reflect.nativeconstructoraccessorimpl.newinstance0(native method)     @ sun.reflect.nativeconstructoraccessorimpl.newinstance(nativeconstructoraccessorimpl.java:62)     @ sun.reflect.delegatingconstructoraccessorimpl.newinstance(delegatingconstructoraccessorimpl.java:45)     @ java.lang.reflect.constructor.newinstance(constructor.java:422)     @ org.jetbrains.android.uipreview.viewloader.createnewinstance(viewloader.java:413)     @ org.jetbrains.android.uipreview.viewloader.loadview(viewloader.java:105)     @ com.android.tools.idea.rendering.layoutlibcallback.loadview(layoutlibcallback.java:176)     @ android.view.bridgeinflater.loadcustomview(bridgeinflater.java:214)     @ android.view.bridgeinflater.createviewfromtag(bridgeinflater.java:142)     @ android.view.layoutinflater.rinflate_original(layoutinflater.java:806)     @ android.view.layoutinflater_delegate.rinflate(layoutinflater_delegate.java:64)     @ android.view.layoutinflater.rinflate(layoutinflater.java:782)     @ android.view.layoutinflater.rinflate_original(layoutinflater.java:809)     @ android.view.layoutinflater_delegate.rinflate(layoutinflater_delegate.java:64)     @ android.view.layoutinflater.rinflate(layoutinflater.java:782)     @ android.view.layoutinflater.rinflate_original(layoutinflater.java:809)     @ android.view.layoutinflater_delegate.rinflate(layoutinflater_delegate.java:64)     @ android.view.layoutinflater.rinflate(layoutinflater.java:782)     @ android.view.layoutinflater.inflate(layoutinflater.java:504)     @ android.view.layoutinflater.inflate(layoutinflater.java:385)     @ com.android.layoutlib.bridge.impl.rendersessionimpl.inflate(rendersessionimpl.java:413)     @ com.android.layoutlib.bridge.bridge.createsession(bridge.java:321)     @ com.android.ide.common.rendering.layoutlibrary.createsession(layoutlibrary.java:350)     @ com.android.tools.idea.rendering.renderservice$5.compute(renderservice.java:708)     @ com.android.tools.idea.rendering.renderservice$5.compute(renderservice.java:697)     @ com.intellij.openapi.application.impl.applicationimpl.runreadaction(applicationimpl.java:932)     @ com.android.tools.idea.rendering.renderservice.createrendersession(renderservice.java:697)     @ com.android.tools.idea.rendering.renderservice.render(renderservice.java:816)     @ com.intellij.android.designer.designsurface.androiddesignereditorpanel$6.run(androiddesignereditorpanel.java:480)     @ com.intellij.util.ui.update.mergingupdatequeue.execute(mergingupdatequeue.java:320)     @ com.intellij.util.ui.update.mergingupdatequeue.execute(mergingupdatequeue.java:310)     @ com.intellij.util.ui.update.mergingupdatequeue$2.run(mergingupdatequeue.java:254)     @ com.intellij.util.ui.update.mergingupdatequeue.flush(mergingupdatequeue.java:269)     @ com.intellij.util.ui.update.mergingupdatequeue.flush(mergingupdatequeue.java:227)     @ com.intellij.util.ui.update.mergingupdatequeue.run(mergingupdatequeue.java:217)     @ com.intellij.util.concurrency.queueprocessor.runsafely(queueprocessor.java:238)     @ com.intellij.util.alarm$request$1.run(alarm.java:327)     @ java.util.concurrent.executors$runnableadapter.call(executors.java:511)     @ java.util.concurrent.futuretask.run(futuretask.java:266)     @ java.util.concurrent.threadpoolexecutor.runworker(threadpoolexecutor.java:1142)     @ java.util.concurrent.threadpoolexecutor$worker.run(threadpoolexecutor.java:617)     @ java.lang.thread.run(thread.java:745) 

here full xml layout:

<?xml version="1.0" encoding="utf-8"?>  <relativelayout     xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     xmlns:app="http://schemas.android.com/apk/res-auto"     android:layout_width="fill_parent"     android:layout_height="fill_parent"     android:orientation="vertical"     android:id="@+id/container">      <scrollview         android:layout_width="fill_parent"         android:layout_height="fill_parent"         android:id="@+id/scrollview3" >          <relativelayout             android:layout_width="match_parent"             android:layout_height="515dp">              <android.support.v4.view.viewpager                 android:id="@+id/pager"                 android:layout_width="match_parent"                 android:layout_height="227dp"                 tools:context=".fmmenu"                 android:layout_below="@+id/textview4"                 android:layout_alignparentleft="true"                 android:layout_alignparentstart="true"                 android:layout_margintop="25dp" />              <com.viewpagerindicator.linepageindicator                 android:id="@+id/lines"                 android:layout_height="wrap_content"                 android:layout_width="fill_parent"                 android:layout_below="@+id/pager"                 android:layout_alignparentleft="true"                 android:layout_alignparentstart="true" />              <imageview                 android:layout_width="wrap_content"                 android:layout_height="wrap_content"                 android:id="@+id/imageview"                 android:background="@drawable/note"                 android:layout_below="@+id/pager"                 android:layout_centerhorizontal="true"                 android:layout_margintop="39dp" />              <textview                 android:layout_width="wrap_content"                 android:layout_height="wrap_content"                 android:textappearance="?android:attr/textappearancemedium"                 android:text="selecciona tu producto:"                 android:id="@+id/textview4"                 android:layout_alignparenttop="true"                 android:layout_alignleft="@+id/imageview"                 android:layout_alignstart="@+id/imageview"                 android:layout_margintop="20dp"                 android:textcolor="#ffdd190d"                 android:layout_marginleft="15dp"                 android:typeface="monospace" />         </relativelayout>     </scrollview>  </relativelayout> 

i used link add viewpagerindicator via gradle

any appreciated