Google Map Displaying Grey Squares

I've made a very simple app that just displays a Google map. However, it only seems to be displaying gray squares.

I've troubleshooted and have done virtually everything I could. I checked my code 5+ times over, I've compared it even to other tutorials. I've re-made my API key 3 times - none of them work.

The phone I'm using is connected to wireless. Even the emulator won't work. I have the library and permission established in the manifest. I think I've done just about everything, but it still doesn't work... any suggestions?

Here's my code:

MapsActivity.java:

package net.learn2develop.GoogleMaps;

import com.google.android.maps.MapActivity;
import com.google.android.maps.MapView;
import android.os.Bundle;

public class MapsActivity extends MapActivity 
{    
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
    }

    @Override
    protected boolean isRouteDisplayed() {
        return false;
    }
}

main.xml:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent">

    <com.google.android.maps.MapView 
        android:id="@+id/mapView"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:enabled="true"
        android:clickable="true"
        android:apiKey="0duU2_tgS67qkUZIpmLVIo0IDvJ开发者_JAVA百科Dh4Ew1Mzh9Pg"
        />
</RelativeLayout>

GoogleMapsManifest:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="net.learn2develop.GoogleMaps"
      android:versionCode="1"
      android:versionName="1.0.0">
    <uses-sdk android:minSdkVersion="7" />
    <application android:icon="@drawable/icon" android:label="@string/app_name">

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

        <activity android:name=".MapsActivity"
                  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>

    <uses-permission android:name="android.permission.INTERNET" />

</manifest>

You need to add

  <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />  

into you manifest

Note: If you are using both NETWORK_PROVIDER and GPS_PROVIDER, then you need to request only the ACCESS_FINE_LOCATION permission, because it includes permission for both providers. (Permission for ACCESS_COARSE_LOCATION includes permission only for NETWORK_PROVIDER.)

The problem was that Mike was using an API key generated with the release keystore instead of the debug keystore that eclipse uses when compiling the apk.

I had the same error ! I tried everything, so a try this tutorial below and it worked!!!!

TUTORIAL