Hi Patricia

what directory are you in when you run that command? If the subject's surf dir, can you then run:

ls -l *patch*

and send us the output?

Bruce On Fri, 3 Nov 2017, Patricia Stefancin wrote:

Hi Bruce,Here is the command line and the output.

mris_flatten -1 -w 0 -distances 20 7 lh.occip.patch.3d lh.occip.patch.flat

MRISread(lh.occip.patch.3d): could not open file No such file or directory mris_flatten: could not read surface file lh.occip.patch.3d No such file or directory