Hello there, I am currently struggling to get my android apk to build. When I build I get an error that says: Code (CSharp): Build failure com.android.build.api.transform.TransformException: com.android.ide.common.process.ProcessException: java.util.concurrent.ExecutionException: com.android.dex.DexException: Multiple dex files define Lcom/google/android/gms/drive/CreateFileActivityBuilder; See the Console for details. In the console I've got the following: Spoiler Code (CSharp): CommandInvokationFailure: Gradle build failed. /Library/Java/JavaVirtualMachines/jdk1.8.0_152.jdk/Contents/Home/bin/java -classpath "/Applications/Unity/PlaybackEngines/AndroidPlayer/Tools/gradle/lib/gradle-launcher-4.0.1.jar" org.gradle.launcher.GradleMain "-Dorg.gradle.jvmargs=-Xmx2048m" "assembleRelease" stderr[ FAILURE: Build failed with an exception. * What went wrong: Execution failed for task ':transformClassesWithDexForRelease' The console says, that the step ':transformClassesWithDexForRelease' fails. I've been searching around the web a bit but couldn't find a solution. Some guys say that this error happens if I got more than one version of some .aar files inside my project, but I checked it and couldn't find anything suspicious. Can someone help me? I'm currently using Unity 2017.3.0f3 on MacOS. Inside my project I've got the most recent version of GooglePlay Services (0.9.50) and some version of Vungle that doesn't seem to cause any troubles at all.