Gradle sync Error in Android Studio 2.2.2

Question

I am working on a project for a client. The project seems to work fine in the old Android Studio, but ever since I updated my studio to 2.2.2, I am getting the sync error when trying to run the app, the error message is as posted below.

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: /home/empressum/.gradle/caches/modules-2/files-2.1/org.apache.httpcomponents/httpclient-android/4.3.5.1/eecbb0b998e77629862a13d957d552b3be58fc4e/httpclient-android-4.3.5.1.jar
         File2: /home/empressum/.gradle/caches/modules-2/files-2.1/org.apache.httpcomponents/httpmime/4.3/5b0002c5fb66867ca919be0fbd86de1cfaf76da7/httpmime-4.3.jar

Answer 1

Add following into respective build.gradle file

  android {
 packagingOptions {
    exclude 'META-INF/ASL2.0'
    exclude 'META-INF/LICENSE'
    exclude 'META-INF/NOTICE'
    exclude 'META-INF/NOTICE.txt'
    exclude 'META-INF/LICENSE.txt'
    exclude 'META-INF/MANIFEST.MF'
}
}

Answer 2

您可能还想检查是否包含2个相同库或.jar的引用，并删除重复的引用。

Answer 3

Guess you are using dependency which is conflicting with androids supplied jars. Add

compile('org.apache.httpcomponents:httpmime:4.3.6') {

  exclude module: 'httpclient' exclude group: 'org.apache.httpcomponents', module: 'httpclient' 

}

in your gradle.

Answer 4

您正在使用两个许多库文件进行http调用，而不是在libs上使用jar文件或在gradle中添加一些依赖项。

Answer 5

The error went when I downloaded the project zip file again and run it. But this time when Android Studio asked me to update the gradle file, I denied. I dont know if this explains the error, but now the project is running fine on any device I connect.