title: Update Google Play Service error
body: <p>Having issues running my application which is working the Firebase authentication tool. </p>
  
  <p>When I get to the 'Create an Account' stage of the process, I am met with and 'error', which is telling me to update my Google Play Services.</p>
  
  <p><a href="https://i.stack.imgur.com/GiG00.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/GiG00.png" alt="Screen Shot of Error"></a></p>
  
  <p>I have tried manually adding the Google Play Service through <code>project structure &gt; dependencies</code>, but to no avail - The issue stays the same.</p>
  
  <p><strong>Module:app Gradle File</strong></p>
  
  <pre><code>    apply plugin: 'com.android.application'
  
  android {
      compileSdkVersion 27
      defaultConfig {
          applicationId "com.example.XXX.myapplication"
          minSdkVersion 15
          targetSdkVersion 27
          versionCode 1
          versionName "1.0"
          testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
      }
      buildTypes {
          release {
              minifyEnabled false
              proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
          }
      }
  }
  
  dependencies {
      implementation fileTree(include: ['*.jar'], dir: 'libs')
      implementation 'com.android.support:appcompat-v7:27.0.2'
      implementation 'com.android.support:design:27.0.2'
      implementation 'com.android.support.constraint:constraint-layout:1.0.2'
      implementation 'com.android.support:support-v4:27.0.2'
      implementation 'com.google.firebase:firebase-auth:11.8.0'
      testImplementation 'junit:junit:4.12'
      androidTestImplementation 'com.android.support.test:runner:1.0.1'
      androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
      compile 'com.android.support:recyclerview-v7:27.0.2'
      compile 'com.android.support:cardview-v7:27.0.2'
      compile 'com.android.volley:volley:1.1.0'
      implementation 'com.github.bumptech.glide:glide:4.6.1'
      annotationProcessor 'com.github.bumptech.glide:compiler:4.6.1'
      compile 'com.google.firebase:firebase-core:11.8.0'
      implementation 'com.google.android.gms:play-services:11.8.0'
      implementation 'com.android.support:mediarouter-v7:27.0.2'
      implementation 'com.google.android.gms:play-services-ads:11.8.0'
  }
  
  apply plugin: 'com.google.gms.google-services'
  </code></pre>
  
  <p>Have checked other threads in Stack but none seem to solve the issue.  Any help on this would be much appreciated! Thanks.</p>