Android Question Error while "Compiling generated Java code."

Hello Community

While compiling, I get the following error message (B4A 12.80):

Begin error code ---------------------------------------------------------

Parsing code. (0.20s)
Java Version: 14
Building folders structure. (0.02s)
Compiling code. (0.29s)
Compiling layouts code. (0.00s)
Organizing libraries. (0.00s)
(AndroidX SDK)
Compiling resources (0.06s)
Linking resources (0.36s)
Compiling debugger engine code. (0.02s)
Compiling generated Java code. Error
error: invalid flag: gen\androidx\savedstate\R
Usage: javac <options> <source files>
use --help for a list of possible options

javac 14.0.1

End error code ---------------------------------------------------------

Anybody has an idea what could be the problem?

Thank you