Hello,
I have written a simple test app that displays the text “test” in a textview. The app works in the emulator on the same android version.
On my android device it will not install saying “app not installed” after attempted installation.
I have already allowed unknown apps to be installed, and allowed “my files” as a trusted source. I have turned off play protect and restarted.
Does anyone know a possible solution?
Greetings,
Stefan