gistfile1.txt

...
Starting contact map-based cluster analysis...

Building distance matrix...
Done.

There are more than 1000 frames, we will limit the interframe plots to approx. 1000x1000.
hierarchical...
Traceback (most recent call last):
  File "/home/user/CONAN/conan-software/conan.py", line 2090, in <module>
    call_hierarchical('cluster_trj', vectors, trunc, trunc_inter, rmsd_interframe_cond, nframes, ks_traj, 'Trajectory', time_vec, 'trj', xterm, xres, yterm, yres, asymm, matrices)
  File "/home/user/CONAN/conan-software/conan.py", line 1370, in call_hierarchical
    plt.figure(figsize=(25, 10))
  File "/home/user/anaconda3/envs/mdcli-env/lib/python3.7/site-packages/matplotlib/pyplot.py", line 548, in figure
    **kwargs)
  File "/home/user/anaconda3/envs/mdcli-env/lib/python3.7/site-packages/matplotlib/backend_bases.py", line 161, in new_figure_manager
    return cls.new_figure_manager_given_figure(num, fig)
  File "/home/user/anaconda3/envs/mdcli-env/lib/python3.7/site-packages/matplotlib/backend_bases.py", line 167, in new_figure_manager_given_figure
    canvas = cls.FigureCanvas(figure)
  File "/home/user/anaconda3/envs/mdcli-env/lib/python3.7/site-packages/matplotlib/backends/backend_qt5agg.py", line 24, in __init__
    super(FigureCanvasQTAgg, self).__init__(figure=figure)
  File "/home/user/anaconda3/envs/mdcli-env/lib/python3.7/site-packages/matplotlib/backends/backend_qt5.py", line 234, in __init__
    _create_qApp()
  File "/home/user/anaconda3/envs/mdcli-env/lib/python3.7/site-packages/matplotlib/backends/backend_qt5.py", line 125, in _create_qApp
    raise RuntimeError('Invalid DISPLAY variable')
RuntimeError: Invalid DISPLAY variable