Error:Execution failed for task ':app:transformResourcesWithMergeJavaResForDebug'

Question

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:

packagingOptions {     exclude 'META-INF/NOTICE' } 

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.

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'         }     } } 

Edit

The full error is this:

Error:Execution failed for task ':app:transformResourcesWithMergeJavaResForDebug'. > 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 

Answer 1

As the error message suggests you are not excluding the META-INF/LICENSE file which exists in more than one of your dependencies

com.android.build.api.transform.TransformException: com.android.builder.packaging.DuplicateFileException: Duplicate files copied in APK META-INF/LICENSE

packagingOptions {     exclude 'META-INF/NOTICE' // will not include NOTICE file     exclude 'META-INF/LICENSE' // will not include LICENSE file     // as noted by @Vishnuvathsan you may also need to include     // variations on the file name. It depends on your dependencies.     // Some other common variations on notice and license file names     exclude 'META-INF/notice'     exclude 'META-INF/notice.txt'     exclude 'META-INF/license'     exclude 'META-INF/license.txt' }