Hi Nathan,
Thank you for reaching out to us.
The user_location_view resource is available only in v2 of the Google Ads API. Could you confirm if you are indeed using the v2 version of the Google Ads API? You may also send me (via Reply privately to author) a copy of the complete JSON logs of your query so that I can further investigate the issue.
Regards,
Ziv Yves Sanchez
Google Ads API Team