Android Question error in BiometricManager

[frankly]

can any help?

this lib https://www.b4x.com/android/forum/threads/biometricmanager-biometric-authentication.111256/

[error]
B4A Versão: 9.01.2
Java Versão: 8
Analisando o código. (0.00s)
Building folders structure. (0.02s)
Compilando o código (0.05s)
Compilando código dos layouts. (0.01s)
Organizando bibliotecas (0.01s)
Gerando o arquivo R. (0.77s)
Compilando o código da rotina de depuração. (0.69s)
Compilando o código Java. Error
javac 1.8.0_181
src\b4a\example\main.java:17: error: cannot find symbol
public class main extends android.support.v4.app.FragmentActivity implements B4AActivity{
^
symbol: class FragmentActivity
location: package android.support.v4.app
Note: src\b4a\example\starter.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: Some messages have been simplified; recompile with -Xdiags:verbose to get full output
1 error
[/error]

 

[Erel]

It requires B4A v9.3+ as the biometric SDK is part of AndroidX sdk.

 

[DonManfred]

It requires B4A v9.3+ as the biometric SDK is part of AndroidX sdk.

Maybe worth to mention it in the Library-Thread.