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[Leso_KN <1651214@xxxxxxxxxxxxxxxxxx>]

I excuse for the bad formatting in the end

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https://bugs.launchpad.net/bugs/1651214

Title:
  Indicator Crash on CalDAV entry without time set

Status in indicator-datetime package in Ubuntu:
  New

Bug description:
  First of all, sorry; this explanation got a little long, but i fixed
  the bug myself for now. This is just a description for the developers,
  to fix the bug in the future.

  A brief explanation what "without time set" is supposed to mean:

  Let's say you synchronize your reminders from your phone over icloud (as i do - caldav.icloud.com)
  then there may be reminders that are not triggered by time, but for example by a location.

  I recently set a reminder to occure when i enter a specific street.
  As i went to that street these days the reminder came up on both devices, my phone and the ubuntu machine.

  Of course i did only set the location where the reminder should
  occure, no additional time.

  But as the reminder got triggered and was shown on the ubuntu machine,
  there simply was a notification in the top right corner saying
  "[Reminder info] (Invalid time: 0 seconds ago)

  Later i noticed, that the clock in the unity bar had frozen some time
  ago.

  I tried serval things and tried every known solution i could find -
  still nothing.

  Everything that happened was: when i restarted whole unity, the time
  was uptodate (for that moment) and the service was active for half a
  second, then it crashed, i could not access any menu entries from the
  clock menu, neither change the time settings.

  I started the indicator-datetime-service from command line, it simply
  crashed and now the clock also disappeared, only appearing for a
  second on launching the service again.

  The bug could be fixed by opening the synchronized calendar in
  Evolution and removing the concerning reminder. I could then launch
  the service again and my time is now uptodate.

  I guess this is something not occuring very often, but i think it
  should probably fixed so that a reminder without time set doesn't
  crash the whole service.

  Additional info:

  Package: indicator-datetime
  Version: 15.10+16.04.20160406-0ubuntu1

  Ubuntu Version 16.04.1 LTS 64bit

  To reconstruct the bug: Use any calendar software (Evolution for example)
                          to connect to a caldav calendar that supports different triggers than
                          time (iOS reminders app for example - supports setting a
                          place as trigger)
                          Set the default calendar application to the ubuntu system internal one
                          (gnome-calendar) and check if the calendar appears there as well
                          Then on the other device / software, that supports the different trigger,
                          simply add a reminder triggered not by time, but by that other event and
                          fire it.
                          The bug should now occure, the clock should freeze and the service should
                          crash.

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