Received invalid task from server

[tartarian]

HI

I just upgraded Davx today from Fdroid today and I started getting the error in the title. I have been using this for a long time without any issues. I did not add any new task for a while, I also did not do any system upgrade relating to Nextcloud. I am not sure what the issue is

I am using it on LIneage os 7.1.2, Davx 2.4 beta2. My server is Nextcloud v15 running on Debian

See the log please

https://paste.debian.net/hidden/506a6275/

[rfc2822]

Hello,

Can you post the (anonymized) contents of this task? https://URL.URL.org/NEXTC/remote.php/caldav/calendars/USER/default-calendar/Nextcloud-6RL263BJL6RY2T5YQ7JSHS.ics

It seems that there’s an UTC property, most probably DTSTAMP, with a timezone (which is not allowed):

Caused by: java.lang.UnsupportedOperationException: Cannot set timezone for UTC properties

See https://forums.bitfire.at/post/10424

Is this the cause? Where does this task come from?

[tartarian]

Hi

Thanks for the reply.

I will go through the cal and remove the personal information. Then post is here.

I searched for DTSTAMP and there is one. Let me know if this portion is enough, if not I will post the whole thing later.

BEGIN:DAYLIGHT
TZNAME:CDT
DTSTART:20360309T020000
TZOFFSETFROM:-0600
TZOFFSETTO:-0500
END:DAYLIGHT
BEGIN:DAYLIGHT
TZNAME:CDT
DTSTART:20370308T020000
TZOFFSETFROM:-0600
TZOFFSETTO:-0500
END:DAYLIGHT
END:VTIMEZONE
BEGIN:VTODO
DTSTAMP:20150603T041115Z
UID:20150603T041115Z-18957@4e6efab67458f3d4
CREATED:20150603T041031Z
LAST-MODIFIED:20150603T041031Z
SUMMARY:xxxxx
STATUS:NEEDS-ACTION
PERCENT-COMPLETE:100
COMPLETED;TZID=America/Chicago:20150715T230629
END:VTODO
END:VCALENDAR

Like I mentioned, this was wrking fine, infact that task seems to be created long time ago, and I never got an error about it before.

[rfc2822]

@tartarian said in Received invalid task from server:

COMPLETED;TZID=America/Chicago:20150715T230629

https://tools.ietf.org/html/rfc5545#section-3.8.2.1 says:

The property can be specified in a “VTODO” calendar component. The value MUST be specified as a date with UTC time.

So fixing the property (change to yyyymmddThhmmssZ) should fix the problem.

Like I mentioned, this was wrking fine, infact that task seems to be created long time ago, and I never got an error about it before.

For tasks, unfortunately DAVx⁵ can’t use the “past event time limit”, because some big servers then don’t report any tasks at all. So all tasks will be synchronized all the time.

Since DAVx⁵ 2.3, invalid tasks are shown to users. Probably you have used DAVx⁵ <2.3 before? Thanks for trying the beta

[tartarian]

Thanks for the follow up. I do not know how to make those changes on the server side really. I just deleted it given that it was entered long time ago. Davx stopped complaining about it.