Mono is definitely broken. I ran “mono /data/Duplicati/Duplicati,CommandLine.exe help” and got pages of errors about bit loading signatures and unhandled exceptions. Then I tried reinstalling mono using the instructions I had found earlier and I’m getting this:
mono-devel : Depends: libmono-system-drawing4.0-cil (>= 3.0.6) but it is not going to be installed
Depends: libmono-system-runtime4.0-cil (>= 2.10.1) but it is not going to be installed
Depends: libmono-system-servicemodel4.0a-cil (>= 3.2.3) but it is not going to be installed
Depends: libmono-system-web-services4.0-cil (>= 1.0) but it is not going to be installed
Depends: libmono-cil-dev (= 126.96.36.199-0xamarin1+debian7b1) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
As this is way outside my ability to fix, I think I’ll have to find another way of running Duplicati on my network. I’m not capable of handling something this complex every time they update the ReadyNAS software. What’s weird is that backup and restore both appear to be working, though I’m getting yellow warning boxes for every operation in the web GUI but there are no errors in the logs:
I think I’ll look into moving my Duplicati installation to another system.
mono -V results in:
Mono JIT compiler version 188.8.131.52 (tarball Fri Oct 13 23:01:19 UTC 2017)
Copyright (C) 2002-2014 Novell, Inc, Xamarin Inc and Contributors. www.mono-project.com
LLVM: supported, not enabled.
GC: sgen (concurrent by default)