Problem with developer key in google play. What to do?

Question

Android

Hello! It's me again. After I transferred the project file (the project itself) to another empty one (the first one I deleted), I had a problem: after the build I upload the APK file (with aab), the Google Play Console gives an error - The uploaded APK file is signed with a certificate that differs from the specified one you. Digital fingerprint of the selected certificate: (and writes that the code of this APK is different from the main one). Although I specified the correct key in Unity, and the key storage folder. What to do? Can I create a new application in Google Play Console and try to upload it there? Or maybe you can do something with the old one? Help me please!

Answer 1

Well, you can upload it to the new application without any problems - the key is tied to the application.
But what happened to the old key - you have to look. But since Google says that the key is not the one, then it is not the one. Maybe the wrong alias is selected, or something else. Check.
If you really need it, you can write to support and ask them to update the key - but this is still a hemorrhagic