[Mne_analysis] [ mne_volume_source_space --mri ] "no nonzero elements"

[Will Foran]

Hi All!
I am trying to produce a nifti file from MEG output as a practice to get 
my feet wet. I am starting with the run_meg_volume_tutorial.sh 
<https://github.com/mne-tools/mne-scripts/blob/master/sample-data/run_meg_volume_tutorial.sh> 
but mne_volume_source_space fails when using the--mri option
...
3757 sources remaining after excluding the sources outside the surface 
and less than    5.0 mm inside.
Adjusting the neighborhood info...[done]
Reading /home/foranw/src/MNE-sample-data/subjects/sample/mri/T1.mgz...[done]
Setting up interpolation...No nonzero elements specified.

I run into the same error trying to use local MEG (not sample) data as well.


Am I missing a step?


Thanks
Will



working:
        mne_volume_source_space --grid 7 \
          --bem 
/home/foranw/src/MNE-sample-data/subjects/sample/bem/sample-5120-bem.fif  \
          --src 
/home/foranw/src/MNE-sample-data/subjects/sample/bem/volume-7mm-src.fif

$?==1, no output:
        mne_volume_source_space  --grid 7 \
          --bem 
/home/foranw/src/MNE-sample-data/subjects/sample/bem/sample-5120-bem.fif \
          --src 
/home/foranw/src/MNE-sample-data/subjects/sample/bem/volume-7mm-src.fif  \
          --mri /home/foranw/src/MNE-sample-data/subjects/sample/mri/T1.mgz
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