Delete coincident faces of polygonal mesh


I’d like to delete coincident faces of a polygonal mesh imported into Paraview 5.9 from a legacy VTK file. I found a method outlined in the link below which uses a Programmable Filter. However, this method is nearly a decade old and gives an error message objecting to attribute “vtkExtractSelection” (see error message below).

I’ve also tried various combinations of filters “clean”, “clean to grid”, “connectivity” … without success (points get merged, but all coincident faces remain).

Thanks for any help or guidance with this.

Regards, Bob

Traceback (most recent call last):
File “”, line 24, in
File “”, line 3, in RequestData
AttributeError: module ‘paraview.pv-vtk-all’ has no attribute ‘vtkExtractSelection’