Please use this to remove the errors in your XML file. Also create a class as per the message.
Update your manifest files accordingly and share your error messages then...
To help you further, I've created a class file for you: Banner.Java ===> this will remove the errors
public class Banner extends View {
public Banner(Context context) {
super(context);
// TODO Auto-generated constructor stub
}
}
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
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=".MainActivity" >
<com.startapp.android.publish.banner.Banner
android:id="@+id/startAppBanner"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignRight="@+id/next"
android:layout_marginBottom="14dp" >
</com.startapp.android.publish.banner.Banner>
</RelativeLayout>