title: Whatelse I try to import "Unable to resolve target 'android-8'" error appear
body: <p>Well I try to use google maps api v2. so that I need to import:</p>
  
  <p>sdk/extras/google/google_play_service</p>
  
  <p>if I import, there are some errors</p>
  
  <pre><code>[2014-02-13 22:32:55 - google-play-services_lib] Unable to resolve target 'android-9'
  [2014-02-13 22:32:56 - google-play-services_lib] Unable to resolve target 'android-9'
  [2014-02-13 22:34:51 - google-play-services_lib] Unable to resolve target 'android-8'
  [2014-02-13 22:34:52 - google-play-services_lib] Unable to resolve target 'android-8'
  </code></pre>
  
  <p>I have uninstall everything and install again but problem is still accuer.</p>