b3269 - mono error preventing running

[ExperiMentor]

I just updated from b3245 (Jun 2023) to b3269 (Dec 2023) by replacing the directory then copying in the /data, /backup, Cumulus.ini and twitter.txt as usual. In the version commentary in the wiki, I don't see any need to go via intervening versions, or any mention of manual steos required.

But b3269 repeatedly fails after a few seconds, without really getting started. The message pasted below seems like mono is not finding something it needs.

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Could not load type of field 'CumulusMX.Cumulus:httpServer' (182) due to: Could not load file or assembly 'Swan.Lite, Version=3.1.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies.

So I did a sudo apt update / sudo apt upgrade in which the upgardes did include to mono, but it made no difference.

Reverting to b3245 appears to run properly.

Clues please as to what is wrong / what to try?

Message from systemctl:

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cmx@CumulusMX:/opt/CumulusMXb3245 $ sudo systemctl status cumulusmx
● cumulusmx.service - CumulusMX service
     Loaded: loaded (/etc/systemd/system/cumulusmx.service; enabled; vendor preset: enabled)
     Active: failed (Result: exit-code) since Fri 2023-12-22 21:23:00 GMT; 2min 19s ago
       Docs: https://cumuluswiki.org/a/Main_Page
    Process: 8399 ExecStart=/usr/bin/mono-service -d:/opt/CumulusMX CumulusMX.exe -service (code=exited, status=0/SUCCESS)
    Process: 8408 ExecStopPost=/bin/rm -f /tmp/CumulusMX.exe.lock (code=exited, status=0/SUCCESS)
   Main PID: 8400 (code=exited, status=1/FAILURE)
        CPU: 6.485s

Dec 22 21:22:52 CumulusMX systemd[1]: Starting CumulusMX service...
Dec 22 21:22:53 CumulusMX systemd[1]: Started CumulusMX service.
Dec 22 21:22:59 CumulusMX mono[8400]: CumulusMX.exe: Could not load type of field 'CumulusMX.Cumulus:httpServer' (182) due to: Could not load file or assembly 'Swan.Lite, Version=3.1.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies.
Dec 22 21:22:59 CumulusMX systemd[1]: cumulusmx.service: Main process exited, code=exited, status=1/FAILURE
Dec 22 21:23:00 CumulusMX systemd[1]: cumulusmx.service: Failed with result 'exit-code'.
Dec 22 21:23:00 CumulusMX systemd[1]: cumulusmx.service: Consumed 6.485s CPU time.

[SamiS]

I have not seen that exact error before, but a few suggestions on what to try:

1) Check that your installation has all the correct files, instructions are at the beginning of hashmd5.txt in CumulusMX folder.

2) Check your mono version, current CMX is not guaranteed to work with older than 6.12.x

3) Remove and reinstall mono-complete package on your system. Using purge option may be necessary if the installation is crooked. Unfortunately I cannot write the command example here since my ipad insists to replace dual dashes with a one long dash.

[water01]

Swan.Lite.dll is part of the package release so my guess is you have not copied the complete build into the CumulusMX folder. Important you do this, especially with this release as there were lots of changes to components as well as code.

[mcrossley]

The Swan.Lite.dll file comes in the Cumulus MX zip file - @water01 beat me to it!

[SamiS]

The Swan.Lite.dll file comes in the Cumulus MX zip file - @water01 beat me to it!

And I beat you both since running the hash check as instructed would have shown a missing file.

[mcrossley]

Indeed, and if there, if it is the correct version or not

[Cortmalaw]

Thanks everyone.

The hash check showed DOZENS of missing files, not just that one. So I know what to do!

My Mono JIT compiler is version 6.12.0.200 , so that's OK