sys:1: PyGIWarning: GES was imported without specifying a version first. Use gi.require_version('GES', '1.0') before import to ensure that the right version gets loaded.
sys:1: PyGIWarning: Gdk was imported without specifying a version first. Use gi.require_version('Gdk', '3.0') before import to ensure that the right version gets loaded.
sys:1: PyGIWarning: GtkClutter was imported without specifying a version first. Use gi.require_version('GtkClutter', '1.0') before import to ensure that the right version gets loaded.
sys:1: PyGIWarning: Notify was imported without specifying a version first. Use gi.require_version('Notify', '0.7') before import to ensure that the right version gets loaded.
sys:1: PyGIWarning: GdkX11 was imported without specifying a version first. Use gi.require_version('GdkX11', '3.0') before import to ensure that the right version gets loaded.
sys:1: PyGIWarning: GstController was imported without specifying a version first. Use gi.require_version('GstController', '1.0') before import to ensure that the right version gets loaded.
Traceback (most recent call last):
  File "/usr/lib/pitivi/python/pitivi/dialogs/startupwizard.py", line 96, in _newProjectCb
    self.app.project_manager.newBlankProject()
  File "/usr/lib/pitivi/python/pitivi/project.py", line 470, in newBlankProject
    project.createTimeline()
  File "/usr/lib/pitivi/python/pitivi/project.py", line 936, in createTimeline
    self.pipeline = Pipeline()
  File "/usr/lib/pitivi/python/pitivi/utils/pipeline.py", line 531, in __init__
    SimplePipeline.__init__(self, self)
  File "/usr/lib/pitivi/python/pitivi/utils/pipeline.py", line 186, in __init__
    self._pipeline.preview_set_video_sink(self.video_sink)
TypeError: Argument 1 does not allow None as a value
Traceback (most recent call last):
  File "/usr/lib/pitivi/python/pitivi/mainwindow.py", line 536, in _projectSettingsCb
    self.showProjectSettingsDialog()
  File "/usr/lib/pitivi/python/pitivi/mainwindow.py", line 540, in showProjectSettingsDialog
    ProjectSettingsDialog(self, self.app.project_manager.current_project).window.run()
  File "/usr/lib/pitivi/python/pitivi/project.py", line 1146, in __init__
    self.updateUI()
  File "/usr/lib/pitivi/python/pitivi/project.py", line 1576, in updateUI
    self.width_spinbutton.set_value(self.project.videowidth)
AttributeError: 'NoneType' object has no attribute 'videowidth'
Missing soft dependency:
- pycanberra not found on the system
    -> enables sound notifications when rendering is complete
Missing soft dependency:
- GnomeDesktop not found on the system
    -> file thumbnails provided by GNOME's thumbnailers
Missing soft dependency:
- libav not found on the system
    -> additional multimedia codecs through the GStreamer Libav library