I re-imaged my pi, modified my setup scripts to download that file before starting OpenHAB and it got past the initial setup. So that seemed to help, @rlkoshak. And thank you for telling me exactly where to get and put the file; I had seen another post which pointed to the directory index of files but I wasn’t sure which one to pull or where to put it, so I appreciate the hand-holding here.
Now I’m on to the next problem (/etc/dhcpcd.conf apparently no longer exists (that’s part of setting up turnkey)). I’ll keep grinding through these until I’ve got it all sorted out.