Hi celticsting,
There shouldn’t be anything missing at the software. The error is most probably regarding things that you should create first. When a material is missing then create one. When a UV is missing then create one.
I would suggest to have a look at the Quickstart videos here: https://youtu.be/Gm7aCzI4xws?list=PLB0iqEbIPQTZEkNWmGcIFGubrLYSDi5O
Kind regards
Reiner