Google Maps Android V2 - blank screen

I am using Google Maps for Android. I created a test application and inserted all permissions, etc. In this application, and the application worked flawlessly.

But when I try to copy the same code for my real application it shows me a blank screen on android activity.Although I have the updated package name in google api console.

This is what my test project manifest looks like:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.mapstutorial"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk
    android:minSdkVersion="8"
    android:targetSdkVersion="17" />

<permission
    android:name="com.example.mapstutorial.permission.MAPS_RECEIVE"
    android:protectionLevel="signature"/>
<uses-permission android:name="com.example.mapstutorial.permission.MAPS_RECEIVE"/>
<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-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" />
    <meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="my api key"/>

    <activity
        android:name="com.example.mapstutorial.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>

and this is what my real project manifest looks like:

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.shop.shoppinglist"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk android:minSdkVersion="8" android:targetSdkVersion="17" />

<permission      android:name="com.shop.addtask.permission.MAPS_RECEIVE" android:protectionLevel="signature"/>
<permission      android:name="com.shop.shoppinglist.permission.C2D_MESSAGE"    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="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.WAKE_LOCK" />

<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES"/>
<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
<uses-permission android:name="com.shop.addtask.permission.MAPS_RECEIVE"/>
<uses-permission android:name="com.shop.shoppinglist.permission.C2D_MESSAGE" />

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

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

    <uses-library android:name="com.google.android.maps"/>
    <meta-data android:name="com.google.android.maps.v2.API_KEY" android:value="my api key"/>

    <activity
        android:name=".Login_Activity"
        android:label="@string/title_activity_main" 
        android:theme="@style/Theme.Sherlock" 
        android:screenOrientation="portrait" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
</application>

I updated the package name to com.shop.addtaskin my console fingerprint, but still it shows me a white screen. What could cause the problem? apikeyI used the same in both applications. But he does test applicationnot work on real app.

• I created an api key with a fingerprint
• on google maps android v2
• api, .

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