Dear team.
Can be this a issue ?
I try to import the ics file into my google calendar but not working. ( see
https://fedorapeople.org/groups/schedule/f-26/ ics files).
I take a look with one text editor and is  VCALENDAR.

BEGIN:VCALENDAR
PRODID:-//K Desktop Environment//NONSGML libkcal 3.5//EN
VERSION:2.0
BEGIN:VTODO
DTSTAMP:20161128T053152Z
CREATED:20161128T053152Z
UID:libkcal-1141265199.433
LAST-MODIFIED:20161128T053152Z
SUMMARY:Fedora 26
PRIORITY:6
DUE:20170711T220000Z
DTSTART:20161109T050000Z
PERCENT-COMPLETE:-1
END:VTODO