iOS Error Packaging from Windows - "object reference not set to an instance of an object"

Hello All -

We are trying to get a project that runs well on a PC running on iOS. I’ve got all certificates, provisioning, etc, working - but when I build, we get a pretty nondescript error - “object reference not set to an instance of an object” and it fails.

Thought maybe I had something wacky in my project - tried starting from a clean “Handheld AR” project template, with the same result.

Log attached below. Can anyone help me decipher what’s up?

Thanks!