Problem with Task Synchronization via DavX - Synchronization Error

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In order to help you as quickly as possible, before clicking Create Topic please provide as much of the below as you can. Feel free to use a pastebin service for logs, otherwise either indent short log examples with four spaces:


Or for longer, use three backticks above and below the code snippet:


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Nextcloud version (eg, 20.0.5): 24.0.6
Operating system and version (eg, Ubuntu 20.04): Ubuntu Server 22.04
Apache or nginx version (eg, Apache 2.4.25): Apache/2.4.52 (Ubuntu)
PHP version (eg, 7.4): PHP 8.1.2

The issue you are facing:
Another user sharing his calendar readonly to me, has a task. When synchronizing the calendars (including tasks) via davx to my phone, I get “Synchronization error: HTTP 404 Not found”.

Is this the first time you’ve seen this error? (Y/N): Y

Steps to replicate it:

  1. User shares calendar including tasks readonly
  2. I connect to all calendars via DavX on my mobile device
  3. After some time I get theses errors shown

The output of your Nextcloud log in Admin > Logging:


The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):

Nothing in the logs rearding this problem

The output of your Apache/nginx/system log in /var/log/____:

Nothing in the logs rearding this problem

Nothing in the logs rearding this problem

Output errors in nextcloud.log in /var/www/ or as admin user in top right menu, filtering for errors. Use a pastebin service if necessary.

Nothing in the logs rearding this problem

I’m not shure where to post this, in nextcloud or somewhere for DavX. I haven’t found any support board or possibility to report a Bug for DavX, so I try it here.

I can just Hide all synchronization errors on my Android device for DavX - but this shouldn’t be the solution.

Thanks for help. I’m sure this information is not enough. Thanks for any help and let me know what information I need to deliver.