I'm having the dreaded failed:400 Error issues when trying to "other assets" with custom fields via the API.

Discussion created by on Jan 25, 2016
Latest reply on Jan 27, 2016 by
I've verified that the XML output is clean using a web based XML validation tool. This was a suggested error, and I'm subsequently getting  this error message:
failed: 400

I've verified that I have samanage API.rb, rest-client xml-siple and curlare all installed via gem.
Am I missing a email/ owner string somewhere?
This was based on the example from github with logging...
Can someone point my non-programmer nose in any direction?