[Mne_analysis] setup_soruce_space error

[Bear, Joshua]

Hi all, 

I received an error message when using setup_source_space with spacing=‘ico5’. It states that it could not find a neighbor for vertex 8015 / 10242. The Freesurfer segmentation looks pretty good, and when I use setup_source_space with spacing=‘oct6’ it works fine. I’ve also used this same script (and, ergo, the same source space call) with several other subjects without error. Any thoughts on the best way to resolve this? Error code below. 

Thank you,
Josh




>>> src = mne.setup_source_space(subject, spacing='ico5', subjects_dir=mri_root_directory)
Setting up the source space with the following parameters:

SUBJECTS_DIR = /Users/joshbear/clinical/meg/anat/
Subject      = E-0192
Surface      = white
Icosahedron subdivision grade 5

>>> 1. Creating the source space...

Doing the icosahedral vertex picking...
Loading /Users/joshbear/clinical/meg/anat/E-0192/surf/lh.white...
Mapping lh E-0192 -> ico (5) ...
    Triangle neighbors and vertex normals...
Loading geometry from /Users/joshbear/clinical/meg/anat/E-0192/surf/lh.sphere...
    Source space vertex moved from 154860 to 154932 because of double occupation
    Source space vertex moved from 154862 to 154866 because of double occupation
    Source space vertex moved from 154908 to 154891 because of double occupation
    Source space vertex moved from 154866 to 154868 because of double occupation
    Source space vertex moved from 154932 to 154938 because of double occupation
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "<string>", line 2, in setup_source_space
  File "/Users/joshbear/bin/anaconda3/envs/mne/lib/python3.6/site-packages/mne/utils.py", line 952, in verbose
    return function(*args, **kwargs)
  File "/Users/joshbear/bin/anaconda3/envs/mne/lib/python3.6/site-packages/mne/source_space.py", line 1470, in setup_source_space
    subjects_dir)
  File "/Users/joshbear/bin/anaconda3/envs/mne/lib/python3.6/site-packages/mne/surface.py", line 732, in _create_surf_spacing
    '%d / %d' % (k, nmap))
RuntimeError: Could not find neighbor for vertex 8015 / 10242
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