title: Error:Execution failed for task ':app:transformResourcesWithMergeJavaResForDebug'
body: <p>So I'm continuously receiving a gradle build error upon trying to run my project. I have searched for other solutions and some say that adding:</p>
  
  <pre><code>packagingOptions {
      exclude 'META-INF/NOTICE'
  }
  </code></pre>
  
  <p>to my app's gradle.build would fix the issue, however, it doesn't. Here is what my app's gradle.build currently looks like.</p>
  
  <pre><code>apply plugin: 'com.android.application'
  apply plugin: 'com.google.gms.google-services'
  
  dependencies {
      compile fileTree(include: ['*.jar'], dir: 'libs')
      compile 'com.google.android.gms:play-services:8.3.0'
      compile 'com.google.android.gms:play-services-ads:8.3.0'
      compile 'com.google.android.gms:play-services-identity:8.3.0'
      compile 'com.firebase:firebase-client-android:2.3.1'
  }
  
  android {
      compileSdkVersion 23
      buildToolsVersion '23.0.1'
      useLibrary 'org.apache.http.legacy'
  
      defaultConfig {
          applicationId "com.example.j.airportmeet"
          minSdkVersion 18
          targetSdkVersion 23
          versionCode 1
          versionName "1.0"
          multiDexEnabled true
      }
  
      packagingOptions {
          exclude 'META-INF/NOTICE'
      }
  
      buildTypes {
          release {
              minifyEnabled false
              proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
          }
      }
  }
  </code></pre>
  
  <h2>Edit</h2>
  
  <p>The full error is this:</p>
  
  <pre><code>Error:Execution failed for task ':app:transformResourcesWithMergeJavaResForDebug'.
  &gt; com.android.build.api.transform.TransformException: com.android.builder.packaging.DuplicateFileException: Duplicate files copied in APK META-INF/LICENSE
      File1: .gradle\caches\modules-2\files-2.1\com.fasterxml.jackson.core\jackson-databind\2.2.2\3c8f6018eaa72d43b261181e801e6f8676c16ef6\jackson-databind-2.2.2.jar
      File2: .gradle\caches\modules-2\files-2.1\com.fasterxml.jackson.core\jackson-core\2.2.2\d20be6a5ddd6f8cfd36ebf6dea329873a1c41f1b\jackson-core-2.2.2.jar
      File3: .gradle\caches\modules-2\files-2.1\com.fasterxml.jackson.core\jackson-annotations\2.2.2\285cb9c666f0f0f3dd8a1be04e1f457eb7b15113\jackson-annotations-2.2.2.jar
  </code></pre>