title: NoClassDefFoundError: android.support.v4.app.NotificationCompatKitKat$Builder when the app is killed but runs absolutely fine when app is running
body: <p>I am trying to implement GCM push Notifications, I am able to achieve the GCM notifications when my app is running or in background. But when app is killed by swiping the app through the running app list I am getting below exception in the service class which is handling the GCM notifications and triggers a notification onto the notification tray:</p>
  
  <pre><code>java.lang.NoClassDefFoundError: android.support.v4.app.NotificationCompatKitKat$Builder
  </code></pre>
  
  <p>Below is my Manifest file pertaining to GCM</p>
  
  <pre><code>&lt;receiver
       android:name="com.google.android.gms.gcm.GcmReceiver"
       android:permission="com.google.android.c2dm.permission.SEND"&gt;
       &lt;intent-filter&gt;
             &lt;action android:name="com.google.android.c2dm.intent.RECEIVE" /&gt;
             &lt;category android:name="com.xxxxx.xxxxxx.xxxxx" /&gt;
       &lt;/intent-filter&gt;
  &lt;/receiver&gt;
  
   &lt;service
       android:name=".services.GCMNotificationListenerService"
              android:exported="false"&gt;
       &lt;intent-filter&gt;
              &lt;action android:name="com.google.android.c2dm.intent.RECEIVE" /&gt;
       &lt;/intent-filter&gt;
   &lt;/service&gt;
  </code></pre>
  
  <p>Below is onMessageRecieved method of service class GCMNotificationListenerService:</p>
  
  <pre><code>    @Override
           public void onMessageReceived(String from,Bundle data){
       Log.d(TAG, "In Receive Method of GCm Listener Service");
  
  
  
  Intent intent =  new Intent(this, MyActivity.class);
          intent.putExtra("myKey","myValue");
  
  PendingIntent pendingIntent = PendingIntent.getActivity(this, 0,intent, PendingIntent.FLAG_UPDATE_CURRENT | PendingIntent.FLAG_ONE_SHOT);
  Context context = getBaseContext();
          NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(context)
                  .setSmallIcon(R.drawable.ic_launcher).setContentTitle("This is Title")
                  .setContentText("Body of the message").setContentIntent( pendingIntent);
          NotificationManager mNotificationManager = (NotificationManager) context
                  .getSystemService(Context.NOTIFICATION_SERVICE);
          mNotificationManager.notify(MESSAGE_NOTIFICATION_ID, mBuilder.build());
            }
  </code></pre>
  
  <p>The above code runs absolutely fine when the app is running or in background but the same throws exception java.lang.NoClassDefFoundError: android.support.v4.app.NotificationCompatKitKat$Builder when the app is killed.</p>
  
  <p>Am I missing something ? Kindly help.</p>
  
  <p>Here is my build.gradle</p>
  
  <pre><code>buildscript {
      repositories {
          maven { url 'https://maven.fabric.io/public' }
      }
  
      dependencies {
          classpath 'io.fabric.tools:gradle:1.+'
  
      }
  }
  apply plugin: 'com.google.gms.google-services'
  apply plugin: 'com.android.application'
  apply plugin: 'io.fabric'
  //apply plugin: 'com.google.gms.google-services'
  repositories {
      maven { url 'https://maven.fabric.io/public' }
  }
  
  
  android {
      compileSdkVersion 21
      buildToolsVersion "21.1.2"
  
      defaultConfig {
          applicationId "com.chromosis.wishhapp.wishhapp"
          minSdkVersion 15
          targetSdkVersion 21
          versionCode 1
          versionName "1.0"
          multiDexEnabled true
      }
      buildTypes {
          release {
              minifyEnabled false
              proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
          }
      }
      // workaround for "duplicate files during packaging of APK" issue
      // see https://groups.google.com/d/msg/adt-dev/bl5Rc4Szpzg/wC8cylTWuIEJ
      packagingOptions {
          exclude 'META-INF/ASL2.0'
          exclude 'META-INF/LICENSE'
          exclude 'META-INF/NOTICE'
      }
      dexOptions {
          javaMaxHeapSize "2g"
      }
  }
  
  dependencies {
      compile fileTree(include: ['*.jar'], dir: 'libs')
      compile 'com.android.support:appcompat-v7:21.0.3'
      //compile 'com.couchbase.lite:couchbase-lite-android:1.0.3.1'
      compile 'com.couchbase.lite:couchbase-lite-android:1.1.0'
      compile 'com.android.support:recyclerview-v7:21.0.3'
      compile 'com.android.support:cardview-v7:21.0.3'
      compile 'com.squareup.picasso:picasso:2.5.0'
      compile 'it.neokree:MaterialTabs:0.11'
      compile project(':citruslibrary')
      compile 'com.soundcloud.android:android-crop:1.0.0@aar'
      compile 'xyz.danoz:recyclerviewfastscroller:0.1.3'
      compile 'com.pkmmte.view:circularimageview:1.1'
      compile 'com.android.support:palette-v7:21.0.+'
      compile 'com.mcxiaoke.volley:library-aar:1.0.1'
      compile 'com.appboy:android-sdk-ui:1.7.3'
      compile 'com.android.support:design:22.2.0'
      compile 'me.villani.lorenzo.android:android-cropimage:1.1.0'
      compile('com.crashlytics.sdk.android:crashlytics:2.4.0@aar') {
          transitive = true;
      }
      compile 'com.amazonaws:aws-android-sdk-core:2.2.9'
      compile 'com.amazonaws:aws-android-sdk-cognito:2.2.9'
      compile 'com.amazonaws:aws-android-sdk-s3:2.2.9'
      compile 'com.amazonaws:aws-android-sdk-ddb:2.2.9'
      compile 'com.android.support:multidex:1.0.0'
      //compile 'com.google.android.gms:play-services-gcm:8.3.0'
      compile 'com.google.android.gms:play-services-gcm:8.1.0'
  
  
  }
  </code></pre>