I’ve got exact same warning messages in 3 servers’ backup reports today, but it seems backups were successful.
Here is the message:
2019-12-04 06:30:00 +03 - [Warning-Duplicati.Library.DynamicLoader.DynamicLoader`1-SoftError]: Failed to load process type Duplicati.Library.Common.IO.VssBackupComponents assembly /usr/lib/duplicati/Duplicati.Library.IO.dll, error message: Could not load type of field 'Duplicati.Library.Common.IO.VssBackupComponents:_vssBackupComponents' (1) due to: Could not load file or assembly 'AlphaVSS.Common, Version=1.4.0.0, Culture=neutral, PublicKeyToken=959d3993561034e3' or one of its dependencies.
Duplicati Version: 2.0.4.34 (2.0.4.34_canary_2019-11-05)
OS: Ubuntu 18.04 LTS
Kernel: 4.15.0
Mono Version: 6.4.0.198
Backend: Backblaze B2
Those messages were only found in backup mail report (LimitedWarnings section). I could not find them in log file (log file level is Retry
).