UE4-27 HOLOLENS PackagingResults: Error: Unknown Error

I am a student without procedural language.
I try to pack the project, but the PackagingResults error is getting out: Error: Error Unknown Error.
Log.

I have the same issue when packaging from 4.27. I can’t resolve that but I can tell you that the 4.26 version of unreal is able to fully package hololens apps without issue if you don’t mind going back a version.