Now this error is coming. . . . still GUI is not coming . . . stame1 at itlrstud044:~/software/ReadTextFile/build> ./ReadTextFile Usage: ./ReadTextFile Filename(.xyz) -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://www.vtk.org/pipermail/vtkusers/attachments/20130814/20e1a310/attachment.htm>