Help with launching on android!

Greetings to all! I would like to ask for help with my problem, which I have not been able to solve for a long time, I have not found a solution either from colleagues or on the Internet. All in all! the essence of the problem is that the packaging of a project for android is fast, successful and intact, but as I throw off a project for myself on android, difficulties immediately arise! armv64.
apk and armv7.apk are there, but when they are installed and launched, an error pops up: “The package could not be processed.” All settings, etc. checked several times already, it did not help. Maybe someone knows the solution to this problem? I will be very grateful to you.