There were problems importing the following widgets:
   OWC45Tree: c45 is not found
   OWItemsetViz: No module named OWNetworkCanvas
   OWRScript: No module named rpy2.robjects
   OWLinProj3D: No module named OpenGL
   OWNxExplorer3D: No module named OWNxExplorerQt
   OWScatterPlot3D: No module named OpenGL
   OWSphereviz3D: No module named OpenGL
   OWModelMap: No module named OWNxCanvasQt
   OWANOVA: 'module' object has no attribute 'Orange'
   OWApproxProfiles: 'module' object has no attribute 'Orange'
   OWDataDistance: No module named qt
   OWDataFiles: 'module' object has no attribute 'Orange'
   OWDataFilesSave: 'module' object has no attribute 'Orange'
   OWDataFilesSelector: 'module' object has no attribute 'Orange'
   OWEpistasisAnalysis: 'module' object has no attribute 'Orange'
   OWExampleSelector: No module named qttable
(2, 'No such file or directory')
   OWHypTest: No module named qt
   OWImputeProfiles: 'module' object has no attribute 'Orange'
   OWNormalize: No module named numpyExtn
   OWProcessChipData: 'module' object has no attribute 'Orange'
The following widgets could not be imported and will not be available: OWSphereviz3D, OWModelMap, OWC45Tree, OWLinProj3D, OWNxExplorer3D, OWScatterPlot3D.
The following prototype widgets could not be imported and will not be available: OWItemsetViz, OWImputeProfiles, OWDataFilesSave, OWExampleSelector, OWRScript, OWANOVA, OWApproxProfiles, OWDataFiles, OWProcessChipData, OWDataFilesSelector, OWHypTest, OWEpistasisAnalysis, OWDataDistance, OWNormalize.

Unhandled exception of type IndexError occured at 8:47:44:
Traceback:
  File: orngCanvas.pyw, line 560 in menuItemOpen
  Code: self.schema.loadDocument(name, freeze=0)
    File: orngDoc.py, line 564 in loadDocument
    Code: widgets = schema.getElementsByTagName("widgets")[0]
      IndexError: list index out of range