Before, I had coded an android app on my laptop, a...

# android

[Sai Charan]

Before, I had coded an android app on my laptop, and when I built the APK file for the app, there were no issues with installing it on my phone. However, after resetting my laptop and reinstalling Android Studio, I have been facing a problem. Every time I build the APK file and try to install it on my phone, Google Play Protect doesn't recognize the app error is displayed. Any Solution?

[Frank Bouwens]

not kotlin but kotlin colored But maybe it has to do with the signing of the APK.

When building an APK, it will be signed; With a release APK, this will be obvious, because you need to supply a signing key.

But the APK will also be signed, even when it’s a debug-version.

This will be done with the debug.keystore file, in your home folder. This debug.keystore file is generated automatically when first needed.

When you re-install your PC, this debug.keystore file is lost, and re-generated.

Trying to update (re-install) an app on your phone that was signed with a different key, will result in an error.

Uninstalling the app from your phone, and doing a fresh install, should fix the issue.