Google Maps for Android. Failed to load map. Could not contact Google servers -

i'm trying work google maps on android should appear map white , error: failed load map. error contacting google servers. i've followed many tutorials , answers related on problem still can't fix it. think have correct api key (google maps android) , permissions, perhaps forget , me. android version 4.1.1. lot.

the androidmanifest.xml:

    <?xml version="1.0" encoding="utf-8"?>     <manifest xmlns:android="http://schemas.android.com/apk/res/android"         package="com.example.mapmap"         android:versioncode="1"         android:versionname="1.0" >      <uses-sdk         android:minsdkversion="11"         android:targetsdkversion="17"/>      <uses-feature         android:glesversion="0x00020000"         android:required="true"/>      <permission         android:name="com.example.mapmap.permission.maps_receive"         android:protectionlevel="signature"/>      <uses-permission android:name="android.permission.internet"/>     <uses-permission android:name="android.permission.access_network_state"/>     <uses-permission android:name="android.permission.write_external_storage"/>         <uses-permission android:name="com.google.android.providers.gsf.permission.read_gservices"/>     <uses-permission android:name="android.permission.access_coarse_location"/>     <uses-permission android:name="android.permission.access_fine_location"/>     <uses-permission android:name="com.android.vending.check_license" />          <application             android:allowbackup="true"             android:icon="@drawable/ic_launcher"             android:label="@string/app_name"             android:theme="@style/apptheme" >             <meta-data         android:name="com.google.android.maps.v2.api_key"             android:value="key_from_google_console"/>             <activity                 android:name="com.example.mapmap.mainactivity"                 android:label="@string/app_name" >                 <intent-filter>                     <action android:name="android.intent.action.main" />                     <category android:name="android.intent.category.launcher" />                 </intent-filter>             </activity>         </application>     </manifest> 

the activity_main.xml:

<fragment xmlns:android="http://schemas.android.com/apk/res/android"     android:id="@+id/map"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:name="com.google.android.gms.maps.mapfragment"/> 

the mainactivity.java:

package com.example.mapmap; import android.os.bundle; import android.app.activity; import android.view.menu;  public class mainactivity extends activity {     @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_main); } } 

try using

  com.google.android.gms.maps.supportmapfragment 

instead of

  com.google.android.gms.maps.mapfragment