I have downloaded freesurfer on my mac and after "setup & configuration” I tried to perform example 1 from "test your FreeSurfer Installation”. However when I type the command, this error message shows up:
$Id: mri_convert.c,v 1.226 2016/02/26 16:15:24 mreuter Exp $
reading from sample-001.mgz...
TR=7.25, TE=3.22, TI=600.00, flip angle=7.00
i_ras = (-0, -1, -0)
j_ras = (-0, 0, -1)
k_ras = (-1, 0, 0)
writing to tmp.nii...
niiWrite(): error opening file tmp.nii
ERROR: failure writing tmp.nii