Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/accerciser/plugin/base_plugin.py", line 156, in __call__
    return self.func(*args, **kwargs)
  File "/usr/share/accerciser/plugins/interface_view.py", line 133, in onAccChanged
    section_obj.enable(acc)
  File "/usr/share/accerciser/plugins/interface_view.py", line 188, in enable
    self.populateUI(acc)
  File "/usr/share/accerciser/plugins/interface_view.py", line 590, in populateUI
    layer = ci.getLayer()
  File "/usr/lib/python2.7/site-packages/pyatspi/Accessibility.py", line 232, in <lambda>
    Atspi.Component.getLayer = lambda *args: exwrap(Atspi.Component.get_layer, *args)
  File "/usr/lib/python2.7/site-packages/pyatspi/Accessibility.py", line 147, in exwrap
    return func(*args)
  File "/usr/lib64/python2.7/site-packages/gi/types.py", line 44, in function
    return info.invoke(*args)
ValueError: invalid enum value: -1