I installed Android Studio and launched the emulator there. When compiling in B4A everything goes well until the application is installed in the emulator when it gives the error message:
adb: failed to install SmartCity.apk: Failure [INSTALL_PARSE_FAILED_NO_CERTIFICATES: Scanning Failed.: No signature found in package of version 2 or newer for package xxi.smartcity]
after installing Android Studio, when launching AVD Manager from B4A, it crashes like in attached image.