Hello eskimo,
I am facing the exact same issue when i try to run 'rvictl' command to capture network traffic [ 2.2 GHz 6-Core Intel Core i7].
I assume the solution what you have mentioned is for Apple silicon ( Mac M1).
Xcode Version 13.0 beta 3 (13A5192j)
macOS BigSur
version 11.5.2 (20G95)