title: Created an app with create-react-native-app, how to publish it to the Google Play Store?
body: <p>I have created an app with create-react-native-app, but I am not sure how to publish it to google play store.</p>
  
  <p><strong>Error 1</strong></p>
  
  <p>After reading this <a href="https://docs.expo.io/versions/v15.0.0/guides/building-standalone-apps.html" rel="noreferrer">doc</a>.</p>
  
  <pre><code>; exp build:android
  [exp] Making sure project is set up correctly...
  /[exp] Warning: Not using the Expo fork of react-native. See https://docs.expo.io/.
  \[exp] Warning: 'react-native' peer depencency missing. Run `npm ls` in /var/www/html/test/testme/osmosis-seek-android to see full warning.
  [exp] 
  [exp] If there is an issue running your project, please run `npm install` in /var/www/html/test/testme/osmosis-seek-android and restart.
  [exp] Your project looks good!
  [exp] Checking if current build exists...
  
  [exp] No currently active or previous builds for this project.
  
  ? Would you like to upload a keystore or have us generate one for you?
  If you don't know what this means, let us handle it! :)
   false
  [exp] Starting build process...
  [exp] Publishing...
  [exp] Published
  [exp] Your URL is
  
  https://exp.host/@kenpeter/osmosis-seek-android
  
  [exp] Building...
  [exp] Must specify a java package in order to build this experience for Android. Please specify one in app.json at "expo.android.package"
  </code></pre>