Duplicate files copied in APK META-INF/INDEX.LIST

Execution failed for task ':daocore:transformResourcesWithMergeJavaResForRelease'.
> com.android.build.api.transform.TransformException: com.android.builder.packaging.DuplicateFileException: Duplicate files copied in APK META-INF/INDEX.LIST
  	File1: /Users/hayden/Desktop/TakDAO-master/daocore/libs/spring-beans-3.0.5.RELEASE.jar
  	File2: /Users/hayden/Desktop/TakDAO-master/daocore/libs/spring-core-3.0.5.RELEASE.jar

在 build.gradle(:daocore) 中添加即可：

packagingOptions {
    exclude 'META-INF/INDEX.LIST'
}