title: Unable to merge android manifests
body: <p>I was working with <a href="https://github.com/playgameservices/play-games-plugin-for-unity" rel="nofollow">google play services</a> without any problem. after I add <a href="https://github.com/unity-plugins/Unity-Admob" rel="nofollow">Admob</a>, I start seeing this issue. I don't know what's the problem. I tried to search about it here, but I couldn't find any working solution. Can you help please?</p>
  
  <pre><code>Error building Player: CommandInvokationFailure: Unable to merge android manifests. See the Console for more details. 
  C:/Program Files/Java/jdk1.8.0_91\bin\java.exe -Xmx2048M -Dcom.android.sdkmanager.toolsdir="C:/Users/Wasim-PC/AppData/Local/Android/sdk\tools" -Dfile.encoding=UTF8 -jar "C:\Program Files\Unity\Editor\Data\PlaybackEngines\AndroidPlayer/Tools\sdktools.jar" -
  
  stderr[
  Error: [Temp\StagingArea\AndroidManifest-main.xml:22, C:\Users\Wasim-PC\Documents\Fly With The Air\Temp\StagingArea\android-libraries\MainLibProj\AndroidManifest.xml:13] Trying to merge incompatible /manifest/application/meta-data[@name=com.google.android.gms.version] element:
    &lt;meta-data
        @android:name="com.google.android.gms.version"
  --    @android:value="8115000"&gt;
    &lt;meta-data
        @android:name="com.google.android.gms.version"
  ++    @android:value="@integer/google_play_services_version"&gt;
  Error: [Temp\StagingArea\AndroidManifest-main.xml:22, C:\Users\Wasim-PC\Documents\Fly With The Air\Temp\StagingArea\android-libraries\play-services-basement-9.2.1\AndroidManifest.xml:5] Trying to merge incompatible /manifest/application/meta-data[@name=com.google.android.gms.version] element:
    &lt;meta-data
        @android:name="com.google.android.gms.version"
  --    @android:value="8115000"&gt;
    &lt;meta-data
        @android:name="com.google.android.gms.version"
  ++    @android:value="@integer/google_play_services_version"&gt;
  ]
  stdout[
  
  ]
  </code></pre>