title: can not resolve symbol FirebaseMessagingService
body: <p>compile 'com.google.firebase:firebase-messaging:12.0.1' is set</p>
  
  <p>with compile 'com.google.firebase:firebase-messaging:10.2.1' - everything is fine</p>
  
  <pre><code>dependencies {
  
      compile fileTree(include: ['*.jar'], dir: 'libs')
  
      androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
          exclude group: 'com.android.support', module: 'support-annotations'
      })
  
      compile 'com.android.support:appcompat-v7:26.+'
      compile 'com.android.support:design:26.+'
      compile 'com.android.support:cardview-v7:26.0.0-alpha1'
      compile 'com.android.support.constraint:constraint-layout:1.0.2'
      compile 'com.android.support:recyclerview-v7:26.0.0-alpha1'
      compile 'com.vk:androidsdk:+'
      compile 'com.google.firebase:firebase-core:10.2.1'
      compile 'com.google.firebase:firebase-messaging:10.2.1'
      compile 'com.google.firebase:firebase-database:10.2.1'
      compile 'com.journeyapps:zxing-android-embedded:3.5.0'
      compile 'com.google.zxing:core:3.2.0'
      compile 'com.google.firebase:firebase-storage:10.2.1'
      compile 'com.google.firebase:firebase-auth:10.2.1'
      compile 'com.google.firebase:firebase-crash:10.2.1'
      compile 'com.github.techery:properratingbar:+'
      compile 'com.github.zagum:Android-SwitchIcon:1.3.5'
      compile 'com.heinrichreimersoftware:material-intro:1.6.2'
      compile 'com.android.support:support-v4:26.+'
      compile 'com.github.amlcurran.showcaseview:library:5.4.3'
      compile 'com.facebook.android:facebook-login:[4,5)'
      compile 'com.google.android.gms:play-services-auth:10.2.1'
  
      testCompile 'junit:junit:4.12'
  
  }
  </code></pre>