I’m having essentially the same issue as in this topic from October 2017. His solution was to wipe everything and start fresh: Unable to delete Arlo (Connect) SmartApp from API. There has to be a better solution.
SmartThings started overwriting my Arlo rules and camera rules, so I decided to delete all my cameras from SmartThings, then remove them from all dashboards, routines, etc. and finally delete the Arlo (Connect) SmartApp and start fresh. Every camera and reference to every camera is gone now, and I’m still getting the following error when I attempt to delete the SmartApp:
“Device still in use. Remove from any SmartApps or Dashboards, then try again.”
I did that. Then I rebooted the hub, my phone, etc. then attempted to delete the smartapp from the web UI. No dice.
Any ideas? I really don’t want to start from scratch. Sadly, there’s still no way to backup and restore your entire config in SmartThings. What?!