daibutsunet

Maybe this helps: [https://github.com/gggard/AndroidCaldavSyncAdapater/issues/252](url)

Sorry, the above link reads ok, but points to nowhere. Couldn't find out in a rush how to place a link here which reads and works correctly, so just follow...

I'm facing the same. I'm using Synology CalDAV. After fiddling around with some test calendars, I found that some calendars sync, some give the above error. But up to now...

Tested it a bit further. To me it's now pretty obvious, that specific calendar entries are the culprit: recurring events. It happens that there are entries where the period shows...