Cannot sync Gradle with @aar in jcenter!

[chau-bao-long]

As your Readme.md, I avail myself of using growthbeat new version 2.0.4
Add lib to gradle with repository jcenter()

compile 'com.growthbeat:growthbeat-android:2.0.4@aar'

The compilation is fail and I guess that gradle couldn't download your repository.
However, I can download and use the lib with jar instead, this one is success

compile 'com.growthbeat:growthbeat-android:2.0.4

Sadly, this compilation still fail because

com.android.build.api.transform.TransformException: java.util.zip.ZipException: duplicate entry: com/google/android/gms/R$string.class

Please check it again, thank you!