Using Google Maps v2

i'm trying to use Google Maps in a fragment, i already did everything that google says and i keep getting this error.

11-24 14:00:45.410: E/AndroidRuntime(12483): Caused by: java.lang.RuntimeException: API key not found.  Check that <meta-data android:name="com.google.android.maps.v2.API_KEY" android:value="your API key"/> is in the <application> element of AndroidManifest.xml

I have the meta-data inside of my AndroidManifest but it keeps saying that i don't have it.

The XML:

<fragment
    android:id="@+id/map"
    android:name="com.google.android.gms.maps.MapFragment"
    android:layout_width="match_parent"
    android:layout_height="0dp"
    android:layout_weight="1"/>
</fragment>

<View
    android:layout_width="match_parent"
    android:layout_height="2dp"
    android:background="@android:color/background_dark" />

<fragment
    android:id="@+id/about"
    android:name="com.hylamobi.speakup.fragments.about_fragment"
    android:layout_width="match_parent"
    android:layout_height="0dp"
    android:layout_weight="1" />

It's just the map on the top, and some buttons in another fragment.