2021-06-08-01:14:14.180 PM System.ArgumentException: Cannot delete a subkey tree because the subkey does not exist.
   at System.ThrowHelper.ThrowArgumentException(ExceptionResource resource)
   at Microsoft.Win32.RegistryKey.DeleteSubKeyTree(String subkey, Boolean throwOnMissingSubKey)
   at Microsoft.Win32.RegistryKey.DeleteSubKeyTree(String subkey)
   at Squirrel.MeetingAddinInstaller.<InstallMeetingAddinAsync>d__14.MoveNext()
2021-06-08-01:14:14.180 PM StagedAppDirectory does not exist. Using Current
2021-06-08-01:14:14.180 PM Version: 1.0.19029.3; addinPackageDirectory: 1.0.19029.3
2021-06-08-01:14:14.211 PM .dead exists: False
2021-06-08-01:14:14.211 PM before cleanup unused versions
2021-06-08-01:14:14.758 PM Addin directory exists. Copy was successful
2021-06-08-01:14:17.618 PM Version 1.0.19029.3 of the meeting add-in is now installed