I am running Docky on Xubuntu across several machines and several generations 
12.04 -14.04 and it is easily reproduced by updating or installing with either 
GUI (software center or update manager) or CLI apt-get or dpkg -i.  The 
installation process is what is killing it.  I have attached the following log 
from an Acer Aspire 7520 AMD 64 (corex2), 4Gb ram, 1 Tb hdd, with Nvidia 
graphics.  
First killall docky. 
Then docky --debug > docky.log & 
then sudo apt-get install warzone2100 -y 
then wait for crash.  
Do not restart docky 
then killall docky. 
End of steps.

It's an annoyance but not a show stopper.  I have tried on a 14.04 beta2
build with the same results.  The following from the log seems to be the
relevent part:

[snip]
[Debug 12:44:19.621] [DesktopItemService] 2 new application(s) found.
[Debug 12:44:19.622] [DesktopItemService] Adding 
'/usr/share/applications/warzone2100.desktop'.
[Debug 12:44:19.622] [DesktopItemService] Adding 
'/usr/share/applications/warzone2100.desktop'.
[Debug 12:44:20.427] [DesktopItemService] Saving desktop item cache 
'/home/froller/.cache/docky/docky.desktop.en_US.UTF-8.cache'.
[Info  12:44:20.795] [DrawingService] Could not find 
'application-default-icon', using fallback of 'application-x-executable'.
[Debug 12:44:21.985] [DesktopItemService] Saving desktop item cache 
'/home/froller/.cache/docky/docky.desktop.en_US.UTF-8.cache'.
[Debug 12:44:23.141] [DesktopItemService] Saving desktop item cache 
'/home/froller/.cache/docky/docky.desktop.en_US.UTF-8.cache'.
[Fatal 12:44:23.192] [GLib-GObject] g_object_ref: assertion 'G_IS_OBJECT 
(object)' failed
[Debug 12:44:24.426] [DesktopItemService] Saving desktop item cache 
'/home/froller/.cache/docky/docky.desktop.en_US.UTF-8.cache'.
[Fatal 12:44:44.124] [GLib-GObject] g_object_ref: assertion 'G_IS_OBJECT 
(object)' failed
[EOF]

relevent because it is the first mention of the new programs and seems
to be trying update cache.  Could [Info  12:44:20.795] the trigger of
the crash? Just guessing, I don't know enough about programing to say.
Given the age of the post, if the solution has been resolved else where
please point me in that direction.

Fred

** Attachment added: "docky.log"
   
https://bugs.launchpad.net/ubuntu/+source/docky/+bug/1074804/+attachment/4085613/+files/docky.log

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Title:
  Application Docky Crashes Frequently

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