Yesterday I upgraded my Duplicati install on Ubuntu 16.04 Server from 188.8.131.52 to 184.108.40.206_beta_2019-07-14. dpkg reported no errors during the upgrade.
However, when my overnight backup task ran (and when I now attempt any manual backup tasks) I get the following error:
The database has version 9 but the largest supported version is 8. This is likely caused by upgrading to a newer version and then downgrading. If this is the case, there is likely a backup file of the previous database version in the folder /root/.config/Duplicati.
No downgrade was performed, and my System Info page from the GUI shows:
ServerVersion : 220.127.116.11 ServerVersionName : - 18.104.22.168_beta_2019-07-14 ServerVersionType : Beta StartedBy : Server BaseVersionName : 22.214.171.124_beta_2019-07-14 DefaultUpdateChannel : Beta DefaultUsageReportLevel : Information
Any ideas how to resolve this? I’ve not come across this before, and no downgrade has been performed on this server so I’m a bit perplexed about how the error came about.