Comment 13 for bug 705545

$ gnome-activity-journal
** Message: pygobject_register_sinkfunc is deprecated (GstObject)
Traceback (most recent call last):
  File "/usr/bin/gnome-activity-journal", line 101, in <module>
    from src.main import PortalWindow
  File "/usr/share/gnome-activity-journal/src/main.py", line 31, in <module>
    from activity_widgets import MultiViewContainer, TimelineViewContainer, ThumbViewContainer
  File "/usr/share/gnome-activity-journal/src/activity_widgets.py", line 40, in <module>
    from supporting_widgets import DayLabel, ContextMenu, StaticPreviewTooltip, VideoPreviewTooltip, SearchBox,\
  File "/usr/share/gnome-activity-journal/src/supporting_widgets.py", line 1464, in <module>
    VideoPreviewTooltip = VideoPreviewTooltip()
  File "/usr/share/gnome-activity-journal/src/supporting_widgets.py", line 646, in __init__
    self.player = gst.element_factory_make("playbin", "player")
gst.ElementNotFoundError: playbin