Duplicati.Library.DynamicLoader.DynamicLoader threw an exception

Immediately when trying to run a job the following error is thrown:

The type initializer for ‘Duplicati.Library.DynamicLoader.DynamicLoader`1’ threw an exception.

No other logs seem to be generated.


Digging around I see more weird behavior, it seems all backup destination types in the drop-down menu are empty.

Also, source is a x86 Gentoo linux environment, and the target is Raspbian via SFTP.

What version of Duplicati and what version of mono?


Has it ever worked properly for you? Or are you setting it up for the first time?

It has worked in the past, it stopped working after a system update.

I just realized a different error is thrown to the screen when it opens:

The type initializer for 'Duplicati.Library.DynamicLoader.CompressionLoader' threw an exception.

Unsure what the issue was, but I rebooted the server for an unrelated reason, and the backups started working again.