[taken from issue tracker]
Concerning the onCreateView in the AddCalendarDetailsFragment.java:
Some Outlook calendar-exports feature a X-WR-CALNAME property (as e.g. Link ) and if parsed, this could be a reasonable suggestion for the title of the calendar.
I will change the logic so that DAVdroid creates UIDs with “_” instead of “@”, and file names according to the UID. This should minimize potential problems.
Now works with 1.5 and your test file.
By the way, you can find this information and more on https://icsdroid.bitfire.at/usage/