title: How to use the API KEY for google map
body: <p>I'm trying to add a google map to my Android application. I have an API KEY from google,
  and used it in my Android Manifest:</p>
  
  <pre><code>&lt;meta-data
    android:name="com.google.android.maps.v2.API_KEY"
    android:value="my API KEY" /&gt;
  </code></pre>
  
  <p>But I faced this error:</p>
  
  <blockquote>
    <p>java.lang.IllegalStateException: The meta-data tag in your app's
    AndroidManifest.xml does not have the right value. Excepted 4030500
    but found 0. You must have the following declaration within the
     element: </p>
  </blockquote>
  
  <pre><code>&lt;meta-data android:name="com.google.android.gms.version"     
      android:value:"@integer/google_play_services_version"/&gt;
  </code></pre>
  
  <p>please help me.</p>