title: Google Maps Activity doesn't work
body: <p>I created a new Android-Studio project, I got the API KEY and my Multidex is enabled but I'm getting this error in my logcat:</p>
  
  <pre><code>01-26 16:55:51.989 5606-5750/com.example.maptestdel E/HAL: load: id=gralloc != hmi-&gt;id=gralloc
  01-26 16:55:52.121 5606-5751/com.example.maptestdel E/b: Authentication failed on the server.
  01-26 16:55:52.121 5606-5751/com.example.maptestdel E/Google Maps Android API: Authorization failure.  Please see https://developers.google.com/maps/documentation/android-api/start for how to correctly set up the map.
  01-26 16:55:52.125 5606-5751/com.example.maptestdel E/Google Maps Android API: In the Google Developer Console (https://console.developers.google.com)
                                                                                 Ensure that the "Google Maps Android API v2" is enabled.
                                                                                 Ensure that the following Android Key exists:
                                                                                  API Key: ABCDEFGHIJKLMNOPQRSTUVWXYZBLABLABLA
                                                                                  Android Application (&lt;cert_fingerprint&gt;;&lt;package_name&gt;): 8B:9C:A2:53:68:BE:3D:3F:4A:53:39:F7:71:83:E6:EB:F4:63:06:6C;com.example.maptestdel
  01-26 16:55:53.767 5606-5748/com.example.maptestdel W/DynamiteModule: Local module descriptor class for com.google.android.gms.googlecertificates not found.
  </code></pre>
  
  <p>How can I enable my Google Maps Android API v2?<br>
  The API key is new, if I start the app on my Huawei P8 Lite I'm getting a white screen with the Google logo at the bottom-left.</p>
  
  <p>My build.gradle:</p>
  
  <pre><code>apply plugin: 'com.android.application'
  
  android {
      compileSdkVersion 25
      buildToolsVersion "24.0.2"
  
      defaultConfig {
          applicationId "com.example.maptestdel"
          minSdkVersion 15
          targetSdkVersion 25
          versionCode 1
          versionName "1.0"
          multiDexEnabled true
  
      }
      dexOptions {
          javaMaxHeapSize "4g"
      }
      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-v7:25.1.0'
      compile 'com.google.android.gms:play-services:10.0.1'
      compile 'com.android.support:multidex:1.0.1'
  }
  </code></pre>