Getting a strange error: java.lang.NoClassDefFoundError: Failed resolution of: Landroidx/core/content/ContextCompat;
I have read a few similar threads but they all imply a dodgy install, I have been developing with this install for over 3 years!
This error happens in RuntimePermissions
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.
If you download the sdk from the link above (and correctrly make use if it) the ide should be configured to use AndroidX.
Based on the error it seems you are not compiling against AndroidX but the old support library.
Ooops, thanks as always DonManfred.
I had downloaded the latest SDK but did not realize the path name had changed to the android.jar file.
Updated the configured paths and back in business.