qt4 fails

error.qt4.fails

Traceback (most recent call last):
  File "./ufsim-office", line 20, in <module>
    app.start ()
  File "/home/zerg/src/ufsim-office/src/python/ufsim/office/app.py", line 98, in start
    startApp()
  File "/home/zerg/src/ufsim-office/src/python/ufsim/office/app.py", line 104, in startApp
    PluginManager.loadPlugins ()
  File "/home/zerg/src/ufsim-office/src/python/ufsim/office/core/PluginManager.py", line 51, in loadPlugins
    mod = cls._load (p["module"], [cls._pluginsDir, plugin])
  File "/home/zerg/src/ufsim-office/src/python/ufsim/office/core/PluginManager.py", line 81, in _load
    mod = load_module (m, *info)
  File "plugins/Maps/maps/Maps.py", line 19, in <module>
    from maps.view3d.Mayavi import MayaviQWidget
  File "plugins/Maps/maps/view3d/__init__.py", line 1, in <module>
    import Mayavi
  File "plugins/Maps/maps/view3d/Mayavi.py", line 7, in <module>
    from enthought.mayavi.core.ui.api import MayaviScene, MlabSceneModel, SceneEditor
  File "/usr/local/lib/python2.6/dist-packages/Mayavi-3.4.2-py2.6-linux-x86_64.egg/enthought/mayavi/core/ui/api.py", line 4, in <module>
    from enthought.tvtk.pyface.scene_editor import SceneEditor
  File "/usr/local/lib/python2.6/dist-packages/Mayavi-3.4.2-py2.6-linux-x86_64.egg/enthought/tvtk/pyface/scene_editor.py", line 12, in <module>
    SceneEditor = toolkit_object('scene_editor:SceneEditor')
  File "/usr/local/lib/python2.6/dist-packages/Mayavi-3.4.2-py2.6-linux-x86_64.egg/enthought/tvtk/pyface/toolkit.py", line 92, in toolkit_object
    __import__(be_mname)
  File "/usr/local/lib/python2.6/dist-packages/Mayavi-3.4.2-py2.6-linux-x86_64.egg/enthought/tvtk/pyface/ui/qt4/scene_editor.py", line 15, in <module>
    from enthought.traits.ui.qt4.editor import Editor
  File "/usr/local/lib/python2.6/dist-packages/TraitsBackendQt-3.6.1-py2.6.egg/enthought/traits/ui/qt4/__init__.py", line 20, in <module>
    __import__('pkg_resources').declare_namespace(__name__)
  File "/usr/lib/python2.6/dist-packages/pkg_resources.py", line 1790, in declare_namespace
    _handle_ns(packageName, path_item)
  File "/usr/lib/python2.6/dist-packages/pkg_resources.py", line 1761, in _handle_ns
    loader.load_module(packageName); module.__path__ = path
  File "/usr/lib/python2.6/pkgutil.py", line 238, in load_module
    mod = imp.load_module(fullname, self.file, self.filename, self.etc)
  File "/usr/local/lib/python2.6/dist-packages/etsproxy-0.1.0-py2.6.egg/enthought/traits/ui/qt4/__init__.py", line 26, in <module>
    import toolkit
  File "/usr/local/lib/python2.6/dist-packages/etsproxy-0.1.0-py2.6.egg/enthought/traits/ui/qt4/toolkit.py", line 2, in <module>
    from traitsui.qt4.toolkit import *
  File "/usr/local/lib/python2.6/dist-packages/traitsui-3.6.1-py2.6.egg/traitsui/qt4/__init__.py", line 24, in <module>
    import toolkit
  File "/usr/local/lib/python2.6/dist-packages/traitsui-3.6.1-py2.6.egg/traitsui/qt4/toolkit.py", line 22, in <module>
    assert_toolkit_import('qt4')
  File "/usr/local/lib/python2.6/dist-packages/traitsui-3.6.1-py2.6.egg/traitsui/toolkit.py", line 60, in assert_toolkit_import
    "backend!" % (name, ETSConfig.toolkit)
RuntimeError: Importing from qt4 backend after selecting wx backend!