sorry to Post here, I did not find a general forum category for Jetpack itself.
In the 5.0.1 DP Developer Guide you are told to find the Source Tag for the Kernel in the Release Notes of L4T 34.1.1
I did that and was encountered with a missing Tag message until I checked the tags in the checked out repository.
The Tag in the Release Notes is simply wrong. It would be nice if you could keep that correct in future releases.
Release Notes: jetson-r34.1.1