face authentication not work in android 10

[hanit0693]

i registed 1 face and remove all fingerprint after click in button Register
in method register() throw error and show message.
detail in Exception
java.lang.IllegalStateException: At least one biometric must be enrolled to create keys requiring user authentication for every use
Devices GALAXY A71
Android 10

[JimSeker]

sorry, I still don't have a device that has a face sensor, so I can't test nor replicate the problem.
But I think the exception is because I don't have it set to use face in the code. so when you removed the fingerprints, it would likely through an exception.