Error importing iCal files

[darkoverlordofdata]

When I try to import *.ics files, it finished with "success: imported 0 events". When I run Kalendar from the command line and try this, I get a slew of errors that just say "Error: not imported". I tried downloading a calendar from gmail, tried the calendar from Orage, and Gnome-Calendar, and loaded one from a calendar website with 'US Holidays' - None work.