title: AdMob ads not loading suddenly after upgrading dependency version to 17.1.2
body: <p>I have followed the official documentation but ads are not loading. I am not sure about the reason, recently I just updated Google AdMob library dependency version to: <strong>play-services-ads:17.1.2</strong></p>
  
  <pre><code>implementation 'androidx.appcompat:appcompat:1.1.0-alpha01'
  implementation 'androidx.constraintlayout:constraintlayout:2.0.0-alpha2'
  testImplementation 'junit:junit:4.12'
  implementation 'com.google.android.gms:play-services-ads:17.1.2'
  </code></pre>
  
  <p>Now getting the following errors in logcat when the application tries to load ad:</p>
  
  <pre><code>2018-12-18 18:04:28.943 17372-17387/? W/Ads: Got on activity created
  2018-12-18 18:04:29.032 17372-17372/? D/DynamitePackage: Instantiating com.google.android.gms.ads.ChimeraMobileAdsSettingManagerCreatorImpl
  2018-12-18 18:04:29.034 17372-17390/? I/Ads: App measurement is starting up, version: 13001
  2018-12-18 18:04:29.034 17372-17390/? I/Ads: To enable debug logging run: adb shell setprop log.tag.FA VERBOSE
  2018-12-18 18:04:29.115 17372-17372/? I/Ads: Updating ad debug logging enablement.
  2018-12-18 18:04:29.522 17372-17372/? I/Ads: Use AdRequest.Builder.addTestDevice("77F7E3A565B98A8D3C5B4E341A1D1AF2") to get test ads on this device.
  2018-12-18 18:04:29.728 17372-17451/? W/Ads: Invoke Firebase method getInstance error.
  2018-12-18 18:04:29.728 17372-17451/? W/Ads: The Google Mobile Ads SDK will not integrate with Firebase. Admob/Firebase integration requires the latest Firebase SDK jar, but Firebase SDK is either missing or out of date
  2018-12-18 18:04:29.825 17372-17396/? W/Ads: Update ad debug logging enablement as false
  2018-12-18 18:04:30.165 17372-17445/? W/Ads: Not retrying to fetch app settings
  2018-12-18 18:04:30.194 22607-16822/? W/Ads: App does not have the required permissions to get location
  2018-12-18 18:04:30.252 22607-17504/? I/Ads: SDK version: afma-sdk-a-v14799021.14300000.1
  2018-12-18 18:04:31.507 17372-17372/? I/Ads: Ad failed to load : 3
  </code></pre>
  
  <p>Test ads are showing fine in real device and emulator. However, my app has nothing to do with GPS location, so I have not invoke runtime permissions for obtaining location updates.</p>