In my app: map show but street don't show

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Android

in my app i need a map. when i run project in my phone project run and show 'google' icon in bottom of screen.. but street don't show and marker.. this is my code.. please help me.

activity.xml :

<fragment xmlns:android="http://schemas.android.com/apk/res/android" xmlns:map="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/map" android:name="com.google.android.gms.maps.SupportMapFragment" android:layout_width="match_parent" android:layout_height="match_parent" tools:context="com.example.s_ghanbari.myapplication31.MapsActivity">

activitymain.java:

public class MapsActivity extends FragmentActivity implements OnMapReadyCallback {

    private GoogleMap mMap;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_maps);
        SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
                .findFragmentById(R.id.map);
        mapFragment.getMapAsync(this);
    }

    @Override
    public void onMapReady(GoogleMap googleMap) {
        mMap = googleMap;

        LatLng sydney = new LatLng(-34, 151);
        mMap.addMarker(new MarkerOptions().position(sydney).title("Marker in Sydney"));
        mMap.moveCamera(CameraUpdateFactory.newLatLng(sydney));
    }
}

manifest.xml

<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.s_ghanbari.myapplication31">

    <uses-permission android:name="com.safecomp.googlemaptest.permission.MAPS_RECEIVE">

    <permission android:name="com.safecomp.googlemaptest.permission.MAPS_RECEIVE" android:protectionlevel="signature">

    <uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES">
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE">
    <uses-permission android:name="android.permission.INTERNET">
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE">
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION">
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION">



    <application android:allowbackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:supportsrtl="true" android:theme="@style/AppTheme">

        <meta-data android:name="com.google.android.geo.API_KEY" android:value="@string/google_maps_key">

        <activity android:name=".MapsActivity" android:label="@string/title_activity_maps">
            <intent-filter>
                <action android:name="android.intent.action.MAIN">

                <category android:name="android.intent.category.LAUNCHER">

What I have tried:

i change debug type to relase type