I’ve seen a few people report this error. I got the error first with duplicati-126.96.36.199_beta_2018-11-28-x64. I’ve just upgraded to duplicati-188.8.131.52_beta_2019-07-14-x64 and I get the same error. The log file doesn’t show anything but it does give me a warning.
Warnings: [ 2019-07-28 22:02:16 -04 - [Warning-Duplicati.Library.Main.Controller-UnsupportedOption]: The supplied option --auth-u is not supported and will be ignored ]
When I run repair, it gives me a yellow flag about this particular warning. But backups fail hard.
I tried a delete rebuild before and it ran for days and days and days. The UI says I have 146 GB with eight versions. Seems like it shouldn’t take that long to rebuild.
Another backup gave me the warnings:
Duplicati.Library.Main.Operation.Backup.FileEnumerationProcess-FileAccessError]: Error reported while accessing file: C:\Users\xyzzy\,
As far as I know, Duplicati is running as admin and should be able to read this directory.
This backup also gave me warnings like:
2019-07-28 22:00:59 -04 - [Error-Duplicati.Library.Main.Database.LocalBackupDatabase-CheckingErrorsForIssue1400]: Checking errors, related to #1400. Unexpected result count: 0, expected 1, hash: rTLs5PzslZx/btfhBMFSYGNMCEaYIkevNX83uHgmRLI=, size: 102400, blocksetid: 403381, ix: 25, fullhash: WZCckGySbIsHjrsAIx+L5vFoGt975B8lF+XPy3J6sSA=, fullsize: 2683356,
I’m going to try repair on this one and see if it fixes the problem. This backup is only 111 GB and three versions.