[Paraview] parafoam

[sirou mohammed]

hi everybody
when i want to plot a graph
i got this:
----------------------------------------------------------------------------------------

ErrorMessage
# Error or warning: There was a VTK Error in file:
/home/dm2/henry/OpenFOAM/linuxSrc/paraview-2.4.4/VTK/Hybrid/vtkXYPlotActor.cxx
(512)
 vtkXYPlotActor (0x98c7dc8): Nothing to plot!
ErrorMessage end
ErrorMessage
# Error or warning: There was a VTK Error in file:
/home/dm2/henry/OpenFOAM/linuxSrc/paraview-2.4.4/VTK/Hybrid/vtkXYPlotActor.cxx
(445)
 vtkXYPlotActor (0x98c7dc8): Nothing to plot!
ErrorMessage end
ErrorMessage
# Error or warning: There was a VTK Error in file:
/home/dm2/henry/OpenFOAM/linuxSrc/paraview-2.4.4/VTK/Hybrid/vtkXYPlotActor.cxx
(512)
 vtkXYPlotActor (0x98c7dc8): Nothing to plot!
ErrorMessage end
ErrorMessage
# Error or warning: There was a VTK Error in file:
/home/dm2/henry/OpenFOAM/linuxSrc/paraview-2.4.4/VTK/Hybrid/vtkXYPlotActor.cxx
(445)
 vtkXYPlotActor (0x98c7dc8): Nothing to plot!
ErrorMessage end
ErrorMessage
# Error or warning: There was a VTK Error in file:
/home/dm2/henry/OpenFOAM/linuxSrc/paraview-2.4.4/VTK/Hybrid/vtkXYPlotActor.cxx
(512)
 vtkXYPlotActor (0x98c7dc8): Nothing to plot!
ErrorMessage end
ErrorMessage
# Error or warning: There was a VTK Error in file:
/home/dm2/henry/OpenFOAM/linuxSrc/paraview-2.4.4/VTK/Hybrid/vtkXYPlotActor.cxx
(445)
 vtkXYPlotActor (0x98c7dc8): Nothing to plot!
ErrorMessage end
some one can help me???