I was looking for solution, but I have found nothing...
What is my problem?
I'm using App Inventor since 2019. I have made a few apps and they are working correctly. Now I had to make some really easy modifications on my app. I test the application on the web (Al Companion / Emulator) and works OK! (no warnings, no errors). Then (as usually) I build an APK file, download it to my phone and try to install it. Unfortunately I see only something like this:
“The Application wasn't installed, because the whole package looks unproperly”.
I'm using Samsung S21 with android 13
(I was trying to install this app on my wife's phone too, but I have got the same result = error)
Someone has written that I should uninstall the old application and delete old APK files. I have done it, but the problem still exist.
I have done one more test: I have built a new APK-file from my old applications (they are 100% OK, no modification), but it was the same result (both phones):
“The Application wasn't installed, because the whole package looks unproperly”.
I have no idea what is wrong and what can I do...
Please help.