@devvv4ever

By the way, you can find this information and more on https://icsdroid.bitfire.at/usage/

Maybe something you accidentially set and didn't remember afterwards. In any case: I'm happy that it works now

Unfortunately, the workaround breaks other things (the reason why we have sent the Accept header)… I wonder whether it's better to integrate it or not.

Sorry for the noise. It was a problem with one of the accounts. Now it works as expected. Only one account needed and both cardav and caldav can connect. Tasks also work.

@rfc2822 Thank you. By locating, opening and saving the calendar item in my calendar app, the invalid syntax was corrected. I will now be able to try to identify and fix any similar errors in the future. However, could your software could be enhanced to describe to the user which item is in error? Displaying SUMMARY, DTSTART and DTEND alongside the UID should be sufficient. Thanks again!

Thanks for the update and the link!

I removed all events from that day (the events were in the past anyway) and the message disappeared. Thanks for your help. Thread can be closed.

HTTP 401… Perhaps Nextcloud Brute force protection / Rate limit?

I really delete the calendar from DavDroid. But you're right, now I have the confirmation dialogue: Well ... I do not understand, my version was downloaded recently on F-droid. The most important thing is that it works now, thanks rfc2822 !

1.11.1 is now available in F-Droid, too!

Thanks for the response, and it makes sense. It so annoying that one has to worry about these things nowadays.

update: The export from WoltLab is wrong; the last Event in the ical file is 16. May. I guess this is caused by the "Sub-Categories" in Woltlab. I had to export each sub-category by its own to get it working. Thank you for your help, this issue is solved. Sadly, there is no error by manual sync. Is there any logfile written by the app I may provide? Already tried to wipe data and reinstalled from F-Droid store. Here are some random images that may give you more information. Seriously, I have no clue what is wrong:

@rfc2822 said in checksum error while sync contacts to second user account on same phone: Can you provide exact steps to reproduce the problem? I checked the configuration today once again and found that the special data privacy settings for DAVDroid in LOS 14.1 where activated and reading of contacts was forbidden. After I have changed the configuration the error disappeared. Thanks for your help!