error when running plot_cortical()

[Ernesto Sanz-Arigita]

Dear enigma team

Thank you so much for the software.

I run into a problem when testing the principal components analysis from the examples of the tutorial (https://enigma-toolbox.readthedocs.io/en/latest/_modules/enigmatoolbox/datasets/base.html).

The code run till the plot_cortical() function, when it returned:

File ~/ENIGMA/enigmatoolbox/vtk_interface/pipeline.py:64, in connect(ftr0, ftr1, port0, port1, add_conn)

62 pinfo = ftr1.GetInputPortInformation(port1)

63 if pinfo.Get(ftr1.INPUT_IS_REPEATABLE()) == 0:

---> 64 raise ValueError("Input port {0} of '{1}' does not " 

65 "accept multiple connections.".

66 format(ftr1.nip, ftr1.__vtkname__)) 

68 if isinstance(add_conn, int): 

69 if not hasattr(ftr1, 'GetUserManagedInputs') or \

70 ftr1.GetUserManagedInputs() == 0:

ValueError: Input port 1 of ''vtkPolyDataNormals'' does not accept multiple connections.

Same error with plot_subcortical().

Any ideas on how to solve this, or a work-around?

Many thanks!

Ernesto

[Ernesto Sanz-Arigita]

Sorry, forgot to add:

I'm running the python script (on Python 3.8.10)

Cheers

Ernesto