The following are the messages:

csh::alanf@cerebro [/autofs/space/dali_003/users/BW_project_DTI/FreeSurfer_5.3_Data] : trac-all -prep -c /autofs/space/dali_003/users/BW_project_DTI/FreeSurfer_5.3_Data/diffusion_recons/dmrirc
INFO: SUBJECTS_DIR is /autofs/space/dali_003/users/BW_project_DTI/FreeSurfer_5.3_Data/diffusion_recons
INFO: Diffusion root is /autofs/space/dali_003/users/BW_project_DTI/FreeSurfer_5.3_Data/diffusion_recons/
Actual FREESURFER_HOME /autofs/cluster/freesurfer/centos6_x86_64/stable5_3_0
trac-preproc -c /autofs/space/dali_003/users/BW_project_DTI/FreeSurfer_5.3_Data/diffusion_recons//BW_101/scripts/dmrirc.local -log /autofs/space/dali_003/users/BW_project_DTI/FreeSurfer_5.3_Data/diffusion_recons//BW_101/scripts/trac-all.log -cmd /autofs/space/dali_003/users/BW_project_DTI/FreeSurfer_5.3_Data/diffusion_recons//BW_101/scripts/trac-all.cmd
#-------------------------------------
/usr/local/freesurfer/stable5_3_0//bin/trac-preproc
#-------------------------------------
#@# Image corrections Mon Aug  5 13:12:10 EDT 2013
mri_convert /autofs/space/dali_003/users/BW_project_DTI/FreeSurfer_5.3_Data/diffusion_recons//BW_101/Diffusion_Recons/20080424_182054563000-000012-000001DTIValeras012a001.nii /autofs/space/dali_003/users/BW_project_DTI/FreeSurfer_5.3_Data/diffusion_recons//BW_101/dmri/dwi_orig.nii.gz
mri_convert /autofs/space/dali_003/users/BW_project_DTI/FreeSurfer_5.3_Data/diffusion_recons//BW_101/Diffusion_Recons/20080424_182054563000-000012-000001DTIValeras012a001.nii /autofs/space/dali_003/users/BW_project_DTI/FreeSurfer_5.3_Data/diffusion_recons//BW_101/dmri/dwi_orig.nii.gz
$Id: mri_convert.c,v 1.179.2.7 2012/09/05 21:55:16 mreuter Exp $
reading from /autofs/space/dali_003/users/BW_project_DTI/FreeSurfer_5.3_Data/diffusion_recons//BW_101/Diffusion_Recons/20080424_182054563000-000012-000001DTIValeras012a001.nii...
TR=7570.00, TE=0.00, TI=0.00, flip angle=0.00
i_ras = (-0.989696, 0.0161603, 0.142271)
j_ras = (0.0163, 0.999867, -0.000183368)
k_ras = (0.142255, -0.00213754, 0.989828)
writing to /autofs/space/dali_003/users/BW_project_DTI/FreeSurfer_5.3_Data/diffusion_recons//BW_101/dmri/dwi_orig.nii.gz...
cp /autofs/space/dali_003/users/BW_project_DTI/FreeSurfer_5.3_Data/diffusion_recons/bvecs.txt /autofs/space/dali_003/users/BW_project_DTI/FreeSurfer_5.3_Data/diffusion_recons//BW_101/dmri/dwi_orig.mghdti.bvecs
cp: cannot stat `/autofs/space/dali_003/users/BW_project_DTI/FreeSurfer_5.3_Data/diffusion_recons/bvecs.txt': No such file or directory
Linux cerebro 2.6.32-358.2.1.el6.x86_64 #1 SMP Wed Mar 13 00:26:49 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

trac-preproc exited with ERRORS at Mon Aug  5 13:12:53 EDT 2013