title: updating the version of com.google.android.gms to 15.0.2
body: <p>I have updated my Firebase SDK version. But theres error of updating the version of com.google.android.gms to 15.0.2. I tried to make firebase and google services of same version but it wont work.</p>
  
  <p>Dependencies</p>
  
  <pre><code>dependencies {
  implementation 'com.google.firebase:firebase-messaging:15.0.2'
  implementation 'com.android.support:design:26.1.0'
  implementation fileTree(include: ['*.jar'], dir: 'libs')
  implementation 'com.google.firebase:firebase-ads:15.0.1'
  androidTestImplementation('com.android.support.test.espresso:espresso-core:2.2.2', {
      exclude group: 'com.android.support', module: 'support-annotations'
  })
  implementation 'com.android.support:appcompat-v7:26.1.0'
  implementation 'com.android.support.constraint:constraint-layout:1.1.0'
  implementation 'org.parceler:parceler-api:1.1.9'
  annotationProcessor 'org.parceler:parceler:1.1.9'
  implementation 'com.google.code.gson:gson:2.8.2'
  implementation 'com.squareup.retrofit2:retrofit:2.3.0'
  implementation 'com.squareup.retrofit2:converter-gson:2.3.0'
  implementation 'io.reactivex:rxjava:1.2.3'
  implementation 'io.reactivex:rxandroid:1.2.1'
  implementation 'com.jakewharton.rxbinding:rxbinding:1.0.0'
  implementation 'com.squareup.retrofit2:adapter-rxjava:2.1.0'
  androidTestImplementation 'com.google.code.findbugs:jsr305:3.0.1'
  implementation 'com.squareup.okhttp3:logging-interceptor:3.2.0'
  implementation 'com.jakewharton:butterknife:8.8.1'
  annotationProcessor 'com.jakewharton:butterknife-compiler:8.8.1'
  debugCompile 'com.squareup.leakcanary:leakcanary-android:1.5.4'
  releaseCompile 'com.squareup.leakcanary:leakcanary-android-no-op:1.5.4'
  implementation 'com.google.dagger:dagger-android:2.11'
  implementation 'com.google.dagger:dagger-android-support:2.11'
  // if you use the support libraries
  annotationProcessor 'com.google.dagger:dagger-android-processor:2.11'
  annotationProcessor 'com.google.dagger:dagger-compiler:2.13'
  implementation 'com.google.auto.value:auto-value:1.5.2'
  implementation 'com.jakewharton.timber:timber:4.1.2'
  implementation 'org.greenrobot:eventbus:3.0.0'
  testImplementation 'junit:junit:4.12'
  implementation 'com.twitter.sdk.android:twitter:3.1.1'
  implementation 'com.android.support:recyclerview-v7:26.1.0'
  implementation 'com.android.support:recyclerview-v7:26.1.0'
  implementation 'com.simplecityapps:recyclerview-fastscroll:1.0.16'
  implementation 'com.google.android.gms:play-services-location:15.0.1'
  implementation 'com.android.support:cardview-v7:26.1.0'
  implementation project(':linkedin-sdk')
  implementation 'com.azoft.carousellayoutmanager:carousel:1.2.1'
  implementation 'com.android.support:multidex:1.0.2'
  implementation 'gun0912.ted:tedpermission:2.1.0'
  implementation project(':libphonenumber-5.9')
  implementation 'com.facebook.android:facebook-login:4.30.0'
  implementation 'com.anjlab.android.iab.v3:library:1.0.44'
  implementation 'com.github.bumptech.glide:glide:3.8.0'
  implementation 'com.android.support:exifinterface:26.1.0'
  }
  </code></pre>