title: Ionic Cordova app stopped compiling after Google's June 17th Firebase SDK update
body: <p>I'm unable to compile Ionic Cordova App after Firebase Major version update with Breaking Changes, specifically with June 17, 2019 update.</p>
  
  <p>I tried downgrading to Android Cordova 6.3.0 but my project must be 7.0.0.</p>
  
  <p>This is my ionic info:</p>
  
  <pre><code>@ionic/cli-utils  : 1.19.2
      ionic (Ionic CLI) : 3.20.0
  
  global packages:
  
      cordova (Cordova CLI) : 8.0.0
  
  local packages:
  
      @ionic/app-scripts : 3.2.1
      Cordova Platforms  : android 7.0.0 browser 5.0.4
      Ionic Framework    : ionic-angular 3.9.3
  
  System:
  
      Android SDK Tools : 26.1.1
      Node              : v8.9.1
      npm               : 5.5.1
      OS                : Windows 10
  
  Environment Variables:
  
      ANDROID_HOME : C:\Development\android-sdk
  
  Misc:
  
      backend : pro
  </code></pre>
  
  <p>This is the error I'm Getting:</p>
  
  <blockquote>
    <p>:app:processDebugResources
    C:\Users\mmzep.gradle\caches\transforms-1\files-1.1\core-1.0.0.aar\73b4a83ab5e76f20c84a66b1c8444d08\res\values\values.xml:133:5-70: AAPT: error: resource android:attr/fontVariationSettings not found.</p>
    
    <p>C:\Users\mmzep.gradle\caches\transforms-1\files-1.1\core-1.0.0.aar\73b4a83ab5e76f20c84a66b1c8444d08\res\values\values.xml:133:5-70: AAPT: error: resource android:attr/ttcIndex not found.</p>
    
    <p>C:\Users\mmzep\Desktop\mario\Seven\SevenPassengerApp\platforms\android\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values\values.xml:95:
    error: resource android:attr/fontVariationSettings not found.
    C:\Users\mmzep\Desktop\mario\Seven\SevenPassengerApp\platforms\android\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values\values.xml:95:
    error: resource android:attr/ttcIndex not found. error: failed linking
    references.</p>
    
    <p>Failed to execute aapt</p>
    
    <p>com.android.ide.common.process.ProcessException: Failed to execute
    aapt</p>
  </blockquote>