Google Maps rendering issues in Android Studio

Question

My map home page for my app in android studio isn't 'rendering'. i recive the error "Found cyclical chain: activity_maps includes activity_maps". Any ideas on fixing this would be much appreciated?

Here's the code for the xml file that won't render:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MapsActivity" >

    <fragment
        android:id="@+id/map"
        android:name="com.google.android.gms.maps.SupportMapFragment"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:layout="@layout/activity_maps" />

    <android.support.design.widget.BottomNavigationView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:id="@+id/bottom_navigation"
        app:itemBackground="@color/colorPrimary"
        app:itemIconTint="@drawable/nav_selector"
        app:itemTextColor="@drawable/nav_selector"
        app:menu="@menu/bottom_menu"
        />


</RelativeLayout>

design screen and error