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

Question

This bug has been persistent for forever. (I made sure that "Google Maps Android API v2" is the one turned on.)

Here's the MainActivity.java:

package com.example.maptest;

import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.view.Menu;

public class MainActivity extends FragmentActivity { 

    @Override     
      protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);

    }
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }     
}

Manifest:

    <uses-sdk
        android:minSdkVersion="17"
        android:targetSdkVersion="17" />

     <permission
        android:name="com.example.maptest.permission.MAPS_RECEIVE"
        android:protectionLevel="signature" />
    <uses-permission 
        android:name="com.google.android.providers.gsf.permission.READ_GSERVICES"/>


    <uses-permission android:name="com.example.maptest.permission.MAPS_RECEIVE" />
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <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" />


    <uses-feature
        android:name="android.hardware.location"
        android:required="true" />
    <uses-feature
        android:name="android.hardware.location.network"
        android:required="true" />
    <uses-feature android:name="android.hardware.location.gps" />
    <uses-feature
        android:name="android.hardware.wifi"
        android:required="true" />

    <uses-feature
        android:glEsVersion="0x00020000"
        android:required="true" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >

        <uses-library android:name="com.google.android.maps" />

        <activity
            android:name="com.example.maptest.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>
        <meta-data
            android:name="com.google.android.maps.v2.API_KEY"
            android:value="AIzaSyAoDwhSzOopQ3g8NBe7d0WblR72TkmnVPU" />


    </application>

</manifest>

activity_main.xml:

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


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

</RelativeLayout>

Please help! I'm not sure what went wrong...though I did end up following/combining various tutorials because none of them worked on their own.

Answer 1

1. The first problem I see is here:

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

remove this line: class="com.google.android.gms.maps.SupportMapFragment"

and set android:name as:

 android:name="com.google.android.gms.maps.SupportMapFragment"

2. Remove this line from the manifest file:

<uses-library android:name="com.google.android.maps" />

This is Google Maps API V1 permission and shouldn't be use in API V2.

Take a look at this blog post and make sure are doing everything correctly:

Google Maps API V2

3. The problem you describing usually derives from a problem in generating or registering the API key using the API Console, If you are positive that you have made all the steps correctly then I suggest you to delete the debug.keystore folder, compile some project in Eclipse (this will result in a new SHA1 key) and register the key again using the console. Take a look at this blog post I wrote and make sure I are doing all the steps right:

Google Map API V2 Key