Android Question Maven artifact not found: androidx.fragment/fragment-ktx

After update to version 12.20 I have encounter this error in my project upon compiling... what this mean?

B4A Version: 12.20
Parsing code. (0.24s)
Java Version: 14
Building folders structure. (2.48s)
Running custom action. (0.02s)
Compiling code. (0.14s)
Compiling layouts code. (0.03s)
Organizing libraries. Error
Maven artifact not found: androidx.fragment/fragment-ktx
Source: Preferences