I create a new project. I do not add any operators.
By default in Build Configurations Package = "b4a.example".
I change "b4a.example" to any other, for example, to "b4a.example2". I'm starting a project. It obviously works.
I go with the file manager to the Android/data/ directory.
Hitex xHelper is a free simple tool to automatically convert old support to new androidx packages.
you can convert and save easily by drag your xml or java files into the text area and drop it.
for example if you type old support recyclerview package and click Convert To X , it changes to new...