[Paraview] CoProcessing: "Could not find whole extent in input"

[melvin_mm]

Dear list,

I am trying to run the C++ CoProcessing example from this page:
http://www.vtk.org/Wiki/Coprocessing_example

It compiles fine with cmake, however when running it with one of the 
Python example scripts on the page I get the error:

"COULD NOT FIND WHOLE EXTENT in input for file series writer"

What am I doing wrong?


Kind regards,
Daniel Molloy