Hello, this is a quick post, actually it won’t be useful for long as a fix is coming from Xamarin, but in case you’ve been fighting with this error >Error: Can't read [C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v7.0\mono.android.jar] (Can't process class [android/app/ActivityTracker.class] (Unsupported class version number [52.0] (maximum 51.0, Java 1.7))) [CREATEMULTIDEXMAINDEXCLASSLIST] here’s the solution: Basically the problem here is that while Proguard updates are handled by the gradle plugin of Android Studio in Java based Android development in Xam ..read more