APK cannot install

Question

Our app, used to work. The last update published 2 and a half weeks ago when the apk file created and worked properly.

The last 2 days when we are trying to create

Answer 1

I had a similar issue before while releasing apk, i was not able to install it, that was happening if the signature v2 is checked.

Unfortunately, I am not really sure why it causes such problems! anyway if you checked v2 try to uncheck it and use only v1 (the jar signature).

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Also thanks to @codeMagic for providing us with this STO thread about differences between both types.