I’m a new user of Duplicati. Set up first backup job which all went OK until the end when it threw this error:

[Warning-Duplicati.Library.Main.Controller-UnsupportedOption]: The supplied option --= is not supported and will be ignored

Backup appeared to work correctly. I restored one file to test, that threw the same error repeatedly but the restore did work.

I’ve obviously included something I shouldn’t have somewhere :smile: Can you advise where I should look to resolve this?


Welcome to the forum @MirM

Where were you setting it up? Was this a simple-as-possible GUI Add backup (if not, please try very simple) or are you in Settings or Advanced Options or Command Line? If GUI, you can look over the
Export As Command-line output, or post a redacted copy to see if there are any odd-looking options.

I found the issue - there was a character in one of the default settings that shouldn’t have been there (can’t remember which one off the top of my head). Removed it and now all is working perfectly.

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