Problem with the installation and performance of gmx-clusterByFeatures

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Dear Gromacs users;

I installed a tool to perform clustering using PCA projections.

When I run the software using the projection of 8 PC from a dihedral PCA it seems to run well but at the end it shows me the following error at the end:

"Program: gmx_clusterByFeatures cluster, version 2016.5

Standard library runtime error (possible bug):

(exception type: N8pybind1117error_already_setE)

UnboundLocalError: local variable ‘plt’ referenced before assignment

At:

(137): plotFeaturesClusters

(2):

/home/lazaro/.local/lib/python3.6/site-packages/gmx_clusterByFeatures/main.py(59):

main

/home/lazaro/.local/bin/gmx_clusterByFeatures(11): "

Does anyone knows how could I fix this?

Note: for the dPCA I used in the option -s the resized.gro dummy file and for the -f option I used the dangle.trr trajectory file with the cos and sin of each dihedral per frame.

Thank you in advance

Kindly,

Lázaro