user1706284 user1706284 - 5 months ago 114
Android Question

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

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

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'
}
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