Duplicati not starting on Mac any more

[Nito]

Hi,

After updating to the latest version through Web GUI (2.0.3.2_canary_2018-03-16) Duplicati is not staring any more.

I get the following after starting through the Terminal:

MBP:Resources MBP$ mono ‘Duplicati.GUI.TrayIcon.exe’
Crash!
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. —> System.Exception: A serious error occurred in Duplicati: System.Exception: Failed to create, open or upgrade the database.
Error message:
The database has version 5 but the largest supported version is 4.

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 /Users/MBP/.config/Duplicati.
at Duplicati.Server.Program.GetDatabaseConnection (System.Collections.Generic.Dictionary`2[TKey,TValue] commandlineOptions) [0x0023b] in :0
at Duplicati.Server.Program.RealMain (System.String args) [0x00206] in :0 —> System.Exception: Failed to create, open or upgrade the database.

Have tried restoring the backup config as described above, Duplicati starts but all the backups and configrations are gone.

Anybody else having the same issue?
Would very much like to get the pretty large backups to show again.

Thanks

[Nito]

Linking other threads discribing similar issues:

Duplicati no longer launching on Mac - database version?

Suddenly, without upgrading the app or making any system changes Duplicati is no longer launching. If I launch app from terminal I get errors (see below). If I delete Duplicati-server.sqlite file the app works again but all my settings, databases etc are gone. Crash! System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.Exception: A serious error occurred in Duplicati: System.Exception: Failed to create, open or upgrade the database…

The database has version 7 but the largest supported version is 6.

[JonMikelV]

Hi @Nito, welcome to the forum - and sorry for the long delay in response.

Should this be considered resolved based on your post here?

Duplicati no longer launching on Mac - database version?

After going through the Github thread above I seem to have found a way around this on a Mac, at least for now. I deleted all the files in ~/.config/Duplicati/ except backup_xxxxxx.sqlite (my latest backup), which allowed Duplicati to start but without any configured backups. Closed Duplicati, opened backup_xxxxxx.sqlite in TextEdit and copied the contents into the newly created Duplicati-server.sqlite file. Started Duplicati again, repaired the database and things seem to be back to normal. T…

[Nito]

Hi @JonMikelV,

Resolved indeed, please close the thread.