Everything is working for two year until a update to B4A 10.2.
Now when I call CheckAndRequest function form runtimePermissions library,
I get this error: java.lang.NoClassDefFoundError: Failed resolution of: Landroidx/core/content/ContextCompat;
B4A includes all the features needed to quickly develop any type of Android app. B4A is used by tens of thousands of developers from all over the world, including companies such as NASA, HP, IBM and others.