title: Error build.gradle with com.google.android.gms:play-services-maps:9.4.0
body: <p>In my app I have these dependencies:</p>
  
  <pre><code>apply plugin: 'com.android.application'
  android {
      compileSdkVersion 23
      buildToolsVersion "23.0.2"
  
      defaultConfig {
          applicationId "com.package_app.name"
          minSdkVersion 15
          targetSdkVersion 23
          versionCode 1
          versionName "1.0"
      }
      buildTypes {
          release {
              minifyEnabled false
              proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
          }
      }
  }
  dependencies {
      compile fileTree(dir: 'libs', include: ['*.jar'])
      testCompile 'junit:junit:4.12'
      compile 'com.android.support:appcompat-v7:23.2.1'
      compile 'com.android.volley:volley:1.0.0'
      compile 'com.google.firebase:firebase-core:9.2.0'
      compile 'com.google.firebase:firebase-messaging:9.2.0'
      compile 'de.hdodenhof:circleimageview:2.1.0'
      compile 'com.android.support:design:23.2.1'
      compile "com.android.support:recyclerview-v7:23.2.1"
      compile 'com.android.support:cardview-v7:23.2.1'
      compile 'com.google.android.gms:play-services-maps:9.4.0'
  }
  </code></pre>
  
  <p>Below these dependencise I put</p>
  
  <pre><code>apply plugin: 'com.google.gms.google-services'
  </code></pre>
  
  <p>But I can't build app because return this error.</p>
  
  <pre><code>Error:Execution failed for task ':app:processDebugGoogleServices'.
  &gt; Please fix the version conflict either by updating the version of the google-services plugin (information about the latest version is available at https://bintray.com/android/android-tools/com.google.gms.google-services/) or updating the version of com.google.android.gms to 9.2.0.
  </code></pre>
  
  <p>So I tried to put </p>
  
  <pre><code>compile 'com.google.android.gms:play-services-maps:9.2.0'
  </code></pre>
  
  <p>And the app build, so my question is:
  <strong>Why I can't use the last versione of services-map</strong>?</p>