[Mne_analysis] No BEM surfaces found

[Alan]

Hello,

I’m trying to run mne_do_forward_model on the SPM dataset. I get the
following error


aleggitt at cerebrum:~$ mne_do_forward_solution --meas
/data/users/alanData/SPM-face/MEG/SPM_CTF_MEG_example_faces1_3D.fif
--mri /data/users/alanData/SPM-face/subjects/SPM/mri/T1-neuromag/sets/COR.fif
--bem /data/users/alanData/SPM-face/subjects/SPM/bem/SPM-20480-20480-20480-bem.fif

mne_forward_solution version 2.9 compiled at Jan  6 2011 02:25:30

Source space                 :
/data/users/alanData/SPM-face/subjects/SPM/bem/SPM-7-src.fif
MRI -> head transform source :
/data/users/alanData/SPM-face/subjects/SPM/mri/T1-neuromag/sets/COR.fif
Measurement data             :
/data/users/alanData/SPM-face/MEG/SPM_CTF_MEG_example_faces1_3D.fif
BEM model                    :
/data/users/alanData/SPM-face/subjects/SPM/bem/SPM-20480-20480-20480-bem.fif
Accurate field computations
Do computations in head coordinates.
Free source orientations
Destination for the solution :
/data/users/alanData/SPM-face/MEG/SPM_CTF_MEG_example_faces1_3D-7-fwd.fif

Reading /data/users/alanData/SPM-face/subjects/SPM/bem/SPM-7-src.fif...
Read 2 source spaces a total of 6382 active source locations

Coordinate transformation: MRI (surface RAS) -> head
     1.000000  0.000000  0.000000      -0.00 mm
     0.000000  1.000000  0.000000      -0.00 mm
     0.000000  0.000000  1.000000      -0.00 mm
     0.000000  0.000000  0.000000     1.00

Read 274 MEG channels from
/data/users/alanData/SPM-face/MEG/SPM_CTF_MEG_example_faces1_3D.fif
Read  29 MEG compensation channels from
/data/users/alanData/SPM-face/MEG/SPM_CTF_MEG_example_faces1_3D.fif
Coordinate transformation: MEG device -> head
     0.997940 -0.049681 -0.040594      -1.35 mm
     0.054745  0.989330  0.135013      -0.41 mm
     0.033453 -0.136957  0.990012      65.80 mm
     0.000000  0.000000  0.000000     1.0057 coil definitions read5
compensation data sets in
/data/users/alanData/SPM-face/MEG/SPM_CTF_MEG_example_faces1_3D.fif
Head coordinate coil definitions created.
Source spaces are now in head coordinates.

Setting up the BEM model using
/data/users/alanData/SPM-face/subjects/SPM/bem/SPM-20480-20480-20480-bem-sol.fif...

Loading surfaces...
No BEM surfaces found in
/data/users/alanData/SPM-face/subjects/SPM/bem/SPM-20480-20480-20480-bem-sol.fif
Forward computation failed (see above)

Prior to running this, I’ve successfully run the following commands


mne_setup_mri
mne_watershed_bem
mne_setup_foward_model --surf

mne_setup_source_space

Am I missing a step or do I need to modify my options for
mne_do_forward_model?

Thanks,
Alan
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