Thanks for your reply, Orvillian.
The tool by Google expects the alias parameter and password, otherwise the encryption doesn't even start. I've tried changing my keystore file with keytool (comes with the java SDK) and adding an alias/password, but to no avail.
You have 3 options at the Google Page, if you want to opt into AAB:
- Use keystore file from Android Studio
- Use keystore file from Java (the one I chose)
- Use another format/build you own tool
If you need any further information, I am more than happy to supply it.