Hi Andrade - You have some forward slashes ("/") at the ends of lines in the config file that should be backslashes ("\") instead.

a.y
From: freesurfer-bounces@nmr.mgh.harvard.edu <freesurfer-bounces@nmr.mgh.harvard.edu> on behalf of Renew Andrade <andraderenew@yahoo.com>
Sent: Saturday, December 21, 2019 9:11 AM
To: Freesurfer Support List <freesurfer@nmr.mgh.harvard.edu>
Subject: [Freesurfer] tracula error gradient vectors too many ('s
 

        External Email - Use Caution        

Dear FreeSurfer experts:
I am trying to run tracula in 4 subjects of a public dataset. I have encountered one error. I leave the output of terminal below. I also attach the configuration file. I hope you can follow from there.
Sincerely,
Andrade.


root@andraderenew:/usr/local/freesurfer/subjects# trac-all -prep -c /usr/local/freesurfer/subjects/dmrirc.IXI
Too many ('s.
INFO: SUBJECTS_DIR is /usr/local/freesurfer/subjects
INFO: Diffusion root is /usr/local/freesurfer/subjects
Actual FREESURFER_HOME /usr/local/freesurfer
trac-preproc -c /usr/local/freesurfer/subjects/IXI_25_Guys_T1/scripts/dmrirc.local -log /usr/local/freesurfer/subjects/IXI_25_Guys_T1/scripts/trac-all.log -cmd /usr/local/freesurfer/subjects/IXI_25_Guys_T1/scripts/trac-all.cmd
#-------------------------------------
/usr/local/freesurfer/bin/trac-preproc
#-------------------------------------
#@# Image corrections sáb dic 21 15:06:13 CET 2019
mri_convert --bvec-voxel /media/andraderenew/backup/image_databases/IXI_dataset/guest-20191220_131017/25_Guys/DTI/NIfTI/IXI025-Guys-0852-DTI-00.nii.gz /usr/local/freesurfer/subjects/IXI_25_Guys_T1/dmri/dwi_orig.nii.gz
mri_convert.bin --bvec-voxel /media/andraderenew/backup/image_databases/IXI_dataset/guest-20191220_131017/25_Guys/DTI/NIfTI/IXI025-Guys-0852-DTI-00.nii.gz /usr/local/freesurfer/subjects/IXI_25_Guys_T1/dmri/dwi_orig.nii.gz
$Id: mri_convert.c,v 1.226 2016/02/26 16:15:24 mreuter Exp $
reading from /media/andraderenew/backup/image_databases/IXI_dataset/guest-20191220_131017/25_Guys/DTI/NIfTI/IXI025-Guys-0852-DTI-00.nii.gz...
TR=0.00, TE=0.00, TI=0.00, flip angle=0.00
i_ras = (-0.998725, -0.0503472, 0.00377193)
j_ras = (-0.0504772, 0.994141, -0.0955763)
k_ras = (-0.00106217, 0.0956448, 0.995415)
writing to /usr/local/freesurfer/subjects/IXI_25_Guys_T1/dmri/dwi_orig.nii.gz...
ERROR: Must specify input table of gradient vectors
Linux andraderenew 5.0.0-37-generic #40~18.04.1-Ubuntu SMP Thu Nov 14 12:06:39 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

trac-preproc exited with ERRORS at sáb dic 21 15:06:13 CET 2019