USMTGUI 10.16.1709 and UPC 1.3.1709 releasedOctober 18, 2017
Errors in USMT can be a bit tricky to figure out.
This MS guide is quite old but very good to go through
Also see my post at sccmdeploy on the most common USMT issues and solutions
USMT – User State Migration Tool Errors