Google Maps Api V2 - Fragment's Error

I know that this question maybe was asked several times, but trust me, i tried every possibility and it doesn't work. I will be as briefly as possible. .java package com.example.aa

Solution 1:

Add the following,

< meta-data android:name="com.google.android.gms.version" 
         android:value="@integer/google_play_services_version" > 
< /meta-data>

in your manifest file immediately below the first meta-data tag(where you have placed your google api key)