getting error in adding xml file

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:ads="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="in.kassapos.admob_app.MainActivity" >

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/hello_world" />
 <com.google.android.gms.ads.AdView android:id="@+id/adView"
                         android:layout_width="wrap_content"
                         android:layout_height="wrap_content"
                         ads:adUnitId="ca-app-pub-1276202305869951/2774122222"
                         ads:adSize="BANNER"/>
</RelativeLayout>

java.lang.RuntimeException: Unable to start activity ComponentInfo{in.kassapos.admob_app/in.kassapos.admob_app.MainActivity}: android.util.AndroidRuntimeException: You cannot combine swipe dismissal and the action bar.