На com.android.tools.build:gradle:3.0.0-beta2 и com.android.tools.build:gradle:3.0.0-beta3 ClassNotFoundException java.lang.ClassNotFoundException: Didn't find class "ru.yandex.yandexmapkit.MapView" on path: DexPathList[[zip file "/data/app/ru.yandexmapkit.sample-2/base.apk"],nativeLibraryDirectories=[/data/app/ru.yandexmapkit.sample-2/lib/x86, /data/app/ru.yandexmapkit.sample-2/base.apk!/lib/x86, /vendor/lib, /system/lib]] даже на тестовом проекте.
На com.android.tools.build:gradle:3.0.0-beta2 и com.android.tools.build:gradle:3.0.0-beta3 ClassNotFoundException java.lang.ClassNotFoundException: Didn't find class "ru.yandex.yandexmapkit.MapView" on path: DexPathList[[zip file "/data/app/ru.yandexmapkit.sample-2/base.apk"],nativeLibraryDirectories=[/data/app/ru.yandexmapkit.sample-2/lib/x86, /data/app/ru.yandexmapkit.sample-2/base.apk!/lib/x86, /vendor/lib, /system/lib]] даже на тестовом проекте.
https://issuetracker.google.com/issues/65042828