@rfc2811 Thank you for your answer! Unfortunately, I managed to run calendar and addressbook sync with just one account in version 0.9.1.3!
Yes, as far as I remember (0.9.x is some time ago for me, as I’m constantly working with the latest master version), DAVdroid 0.9.1.3 tried “/” without reason.
I think that it looks like a regression in version 1.x.
I don’t think so. If you enter a CalDAV URL, only CalDAV should be detected – except if there are well-known URLs. I don’t see any reason to try “/” for good luck, as DAVdroid 0.9.x did (if I remember correctly).
Or do you see any other problem here?
Why don’t you just configure well-known URLs? This would be the correct solution.