I'm trying to rebuild my old app, but this error message shows: Unsupported option: --v4-signing-enabled. See --help for supported options.
I downloaded the files from https://www.b4x.com/b4a.html, but the problem is not fixed,
I tried to build a project on Android Studio using the same SDK, worked just fine.
sorry for my delay, thank you, Erel, I end up re-downloading SDK and all other files and left this SDK folder for B4A and the other SDK folder for my other programs (Android Studio and Unity)