Problema Integração com Maps API no AndroidManifest

Olá pessoal, infelizmente não consigo executar minha aplicaçao. A excessão diz que o Maps API requer uma permissão adicional no AndroidManifest. Abaixo segue o meu xml do AndroidManifest.

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

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="21" />

    <permission
        android:name="br.com.caelum.cadastro.permission.MAPS_RECEIVE"
        android:protectionLevel="signature" />

    <uses-permission android:name="br.com.caelum.cadastro.permission.MAPS_RECEIVE" />
    <uses-permission android:name="android.permission.INTERNET" />
    <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-feature
        android:glEsVersion="0x00020000"
        android:required="true" />

    <uses-permission android:name="android.permission.CALL_PHONE" />
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION" />
    <uses-permission android:name="android.permission.CALL_PHONE" />
    <uses-permission android:name="android.permission.RECEIVE_SMS" />
    <uses-permission android:name="android.permission.CAMERA" />
    <uses-permission android:name="android.permission.READ_CONTACTS" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity android:name=".ListaAlunosActivity" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity
            android:name=".FormularioActivity"
            android:label="@string/app_name" >
        </activity>
        <activity
            android:name="br.com.caelum.cadastro.ProvasActivity"
            android:label="@string/app_name" >
        </activity>
        <activity
            android:name="br.com.caelum.cadastro.MostraAlunosProximosActivity"
            android:label="@string/app_name" >
        </activity>

        <receiver
            android:name=".SMSReceiver"
            android:enabled="true" >
            <intent-filter>
                <action android:name="android.provider.Telephony.SMS_RECEIVED" />
            </intent-filter>
        </receiver>

        <meta-data
            android:name="com.google.android.maps.v2.API_KEY"
            android:value="AIzaSyDgi3GDn4Yc0JKyz-hbL0pL2UxiVjw3aSQ" />
        <meta-data
            android:name="com.google.android.gms.version"
            android:value="@integer/google_play_services_version" />
    </application>

</manifest>