Getting 'app:transformClassesWithDexForDebug' error on compiling the project having useLibrary 'org.apache.http.legacy' in build.gradle

Question

I\'m developing an app in which I\'m using this library.

On compiling the project, this error containing TransformException and RuntimeException<

Answer 1

From the log:

Error:Execution failed for task ':app:transformResourcesWithMergeJavaResForDebug'.
> com.android.build.api.transform.TransformException: com.android.builder.packaging.DuplicateFileException: Duplicate files copied in APK log4j.properties
    File1: C:\Users\user\.gradle\caches\modules-2\files-2.1\org.brunocvcunha.inutils4j\inutils4j\0.4\566b82b1e70d7ebb8d1d3bb513d4bbf7913b118b\inutils4j-0.4.jar
    File2: C:\Users\user\.gradle\caches\modules-2\files-2.1\org.brunocvcunha.ghostme4j\ghostme4j\0.2\d44c3633f23975c355c89192d6e8daa9ce549b2d\ghostme4j-0.2.jar

It looks like you need to exclude log4j.properties from your project because it reside in both of the libraries (inutils4j and ghostme4j). You can try using:

android {
...
    packagingOptions {
         exclude '**/log4j.properties'
    }
...
}

Read more about PackagingOptions.