title: How to add Google repository from Command line SDK manager
body: <p>I have tried updating android sdk using commandine</p>
  
  <pre><code>  ./sdkmanager "build-tools;25.0.3" 
    ./sdkmanager "platforms;android-25"
  </code></pre>
  
  <p>But the project still complains of <code>Could not find com.google.firebase:firebase-core:10.2.6.</code> and the reason for that is </p>
  
  <pre><code>// Getting a "Could not find" error? Make sure you have
  // the latest Google Repository in the Android SDK manager`. 
  </code></pre>
  
  <p>Can someone point me to the command of updating or fetching <code>Google repository</code> from command line</p>