I'm using FS-FAST. For a subject I have the error reported below after fcseed-sess -s subj -cfg vcsf.config.

$Id: mri_glmfit.c,v 1.196.2.8 2012/11/01 18:51:41 greve Exp $

cwd /Applications/freesurfer/subjects/fMRI

cmdline mri_glmfit --y /Applications/freesurfer/subjects/fMRI/subj/rest/001/fmcpr.nii.gz --mask /Applications/freesurfer/subjects/fMRI/subj/rest/001/tmp.fcseed-sess.44153/mask.nii.gz --qa --glmdir /Applications/freesurfer/subjects/fMRI/subj/rest/001/tmp.fcseed-sess.44153/glm --pca --no-est-fwhm 

sysname  Darwin

hostname iMac-di-Stefano.local

machine  x86_64

user     Stefano

FixVertexAreaFlag = 1

UseMaskWithSmoothing     1

OneSampleGroupMean 0

y    /Applications/freesurfer/subjects/fMRI/subj/rest/001/fmcpr.nii.gz

logyflag 0

usedti  0

mask /Applications/freesurfer/subjects/fMRI/subj/rest/001/tmp.fcseed-sess.44153/mask.nii.gz

maskinv 0

glmdir /Applications/freesurfer/subjects/fMRI/subj/rest/001/tmp.fcseed-sess.44153/glm

IllCondOK 0

ReScaleX 1

DoFFx 0

Creating output directory /Applications/freesurfer/subjects/fMRI/subj/rest/001/tmp.fcseed-sess.44153/glm

Loading y from /Applications/freesurfer/subjects/fMRI/subj/rest/001/fmcpr.nii.gz

Saving design matrix to /Applications/freesurfer/subjects/fMRI/subj/rest/001/tmp.fcseed-sess.44153/glm/Xg.dat

Normalized matrix condition is 61.5872

Matrix condition is 1e+08

Pruning voxels by thr: 0.000000

Found 0 voxels in mask

Saving mask to /Applications/freesurfer/subjects/fMRI/subj/rest/001/tmp.fcseed-sess.44153/glm/mask.mgh

search space = 0.000000

DOF = 297

Starting fit and test

Fit completed in 0.00075 minutes

Computing temporal AR1

Writing results

Computing FSNR

  mean

    maxvox sig=0  F=0  at  index 0 0 0    seed=1446346479

  linear

    maxvox sig=0  F=0  at  index 0 0 0    seed=1446346479

  quad

    maxvox sig=0  F=0  at  index 0 0 0    seed=1446346479

Computing PCA (300)

ERROR: no voxels in mask