No resource identifier found for attribute 'pstsIndicatorHeight'

[kamalkataria]

I imported the library properly and copied the libarary.jar into lib folder.But I am getting error :no resource identifier found for attribute.Getting error for every attribute. xml:

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" xmlns:app="http://schemas.android.com/apk/res/com.myapps"> <include android:id="@+id/header" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_alignParentTop="true" layout="@layout/activity_actionbar" /> <com.astuetz.PagerSlidingTabStrip android:id="@+id/tabs" android:layout_width="match_parent" android:layout_height="40dip" app:pstsIndicatorHeight="1dp" app:pstsDividerColor="#ff4e00" android:background="@color/White"/> <android.support.v4.view.ViewPager android:id="@+id/pager" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_weight="1" > </android.support.v4.view.ViewPager>