title: Can't get the configuration file from Google when integrating google sign-in into Android Application
body: <p>I am following the following article:</p>
  
  <p><a href="https://developers.google.com/identity/sign-in/android/start-integrating" rel="nofollow">https://developers.google.com/identity/sign-in/android/start-integrating</a></p>
  
  <p>They have an option there to "Get Configuration File" by just entering your cloud-platform app name and your android app's package.  However, when I do this, I get text-box saying:</p>
  
  <blockquote>
    <p>"To use Google Sign-In, you'll need to provide the SHA1 of your
    signing certificate so we can create an OAuth2 client and API key for
    your app."</p>
  </blockquote>
  
  <p>The button to "Enable Google-Sign In" is disabled, and there's no place to enter a SHA1 key manually....I had done this previously, and if i remember, this page would automatically find by SHA1 key once I entered the necessary info.</p>
  
  <p>I have double checked that my cloud platform application has a client-id for android application defined and I double-checked the package names as well.</p>