A solução que encontrei foi retornar a versão do firebase e do google play, mas ocorreu um erro na construção do aplicativo
08-21 16:21:19.430 9951-9986/br.com.alura.agenda E/DynamiteModule: Failed to load module descriptor class: Didn't find class "com.google.android.gms.dynamite.descriptors.com.google.firebase.auth.ModuleDescriptor" on path: DexPathList[[zip file "/data/app/br.com.alura.agenda-6klDyPsw28Z7nDJ6TmYUfg==/base.apk", zip file "/data/app/br.com.alura.agenda-6klDyPsw28Z7nDJ6TmYUfg==/split_lib_dependencies_apk.apk", zip file "/data/app/br.com.alura.agenda-6klDyPsw28Z7nDJ6TmYUfg==/split_lib_slice_0_apk.apk", zip file "/data/app/br.com.alura.agenda-6klDyPsw28Z7nDJ6TmYUfg==/split_lib_slice_1_apk.apk", zip file "/data/app/br.com.alura.agenda-6klDyPsw28Z7nDJ6TmYUfg==/split_lib_slice_2_apk.apk", zip file "/data/app/br.com.alura.agenda-6klDyPsw28Z7nDJ6TmYUfg==/split_lib_slice_3_apk.apk", zip file "/data/app/br.com.alura.agenda-6klDyPsw28Z7nDJ6TmYUfg==/split_lib_slice_4_apk.apk", zip file "/data/app/br.com.alura.agenda-6klDyPsw28Z7nDJ6TmYUfg==/split_lib_slice_5_apk.apk", zip file "/data/app/br.com.alura.agenda-6klDyPsw28Z7nDJ6TmYUfg==/split_lib_slice_6_apk.apk", zip file "/data/app/br.com.alura.agenda-6klDyPsw28Z7nDJ6TmYUfg==/split_lib_slice_7_apk.apk", zip file "/data/app/br.com.alura.agenda-6klDyPsw28Z7nDJ6TmYUfg==/split_lib_slice_8_apk.apk", zip file "/data/app/br.com.alura.agenda-6klDyPsw28Z7nDJ6TmYUfg==/split_lib_slice_9_apk.apk"],nativeLibraryDirectories=[/data/app/br.com.alura.agenda-6klDyPsw28Z7nDJ6TmYUfg==/lib/x86, /system/lib, /system/vendor/lib]]E não recebo as notificações no emulador
