title: Android Google Maps Services causes building error
body: <p>I want to use Google Maps Geocoding API in my Android project. So I add the <code>google-maps-services</code> as described <a href="https://developers.google.com/maps/documentation/webservices/client-library" rel="nofollow">in official docs</a> by the line:</p>
  
  <pre><code>dependencies {
      compile 'com.google.maps:google-maps-services:0.1.7'
      ...
  }
  </code></pre>
  
  <p>and have such error:</p>
  
  <p><code>Unable to compute hash of .../release/classes.jar</code></p>
  
  <p>How can I fix it? Maybe add some proguard rules?</p>
  
  <p>Thank you for help!</p>