Traceback (most recent call last):
  File "bin/pida", line 29, in <module>
    main()
  File "/home/zapek/src/pida/pida/core/application.py", line 115, in main
    exit_val = run_func(env)
  File "/home/zapek/src/pida/pida/core/application.py", line 93, in run_pida
    b.start()
  File "/home/zapek/src/pida/pida/core/boss.py", line 31, in start
    self._sm.start_services()
  File "/home/zapek/src/pida/pida/core/servicemanager.py", line 140, in start_services
    svc.start()
  File "/home/zapek/src/pida/pida/services/window/window.py", line 137, in start
    self.cmd('add_view', paned='Buffer', view=view, present=False)
  File "/home/zapek/src/pida/pida/core/service.py", line 111, in cmd
    return self._get_commands().call(commandname, **kw)
  File "/home/zapek/src/pida/pida/core/commands.py", line 30, in call
    val = cmd(**kw)
  File "/home/zapek/src/pida/pida/services/window/window.py", line 42, in add_view
    self.svc.window.add_view(paned, view, present)
  File "/home/zapek/src/pida/pida/ui/window.py", line 106, in add_view
    self._paned.add_view(bookname, view, present)
  File "/home/zapek/src/pida/pida/ui/paneds.py", line 37, in add_view
    lab = PaneLabel(view.icon_name, None, view.label_text)
TypeError: icon_widget should be a GtkWidget or None

(gvim:7476): Gdk-WARNING **: GdkWindow 0x5000043 unexpectedly destroyed