oh, this may be a version mismatch then. Which version of FS are you using?
On Tue, 21 Nov 2017, Hwee Ling Lee wrote:

Dear Bruce,
Thanks for your reply.
I checked the folder and did not find the file that was requested.

What I have in the average folder that has 'RB*.gca' are 
'RB_all_2016-05-10.vc700.gca' and
'RB_all_withskull_2016-05-10.vc700.gca'.
The other file in that folder is 'RB_all_2008-03-26.mni152.2mm.lta'.

Cheers,
Hweeling

On Nov 21, 2017 18:05, "Bruce Fischl" <fis...@nmr.mgh.harvard.edu> wrote:
      Hi Hweeling

      what is FREESURFER_HOME set to in the environment? Does that file exist? 
It is a
      standard part of our distribution

      cheers
      Bruce


       On Tue, 21 Nov 2017, Hwee Ling Lee wrote:

            Dear all,

            I have T1 images collected from the 7T MRI scanner.

            I downloaded the most recent freesurfer software, and followed all
            instructions to install the software before using it.

            I would like to segment the T1 data using its high resolution 
image, and
            also to segment the hippocampal subfields.

            For command, I use this:

            recon-all -all -s <subject name> -hires -i <subject dicom T1 image 
frame 1
            location>

            However, I get an error message:

            cannot find $FREESURFER_HOME/average/RB_all_2008-03-26.gca

            I'm not sure what I did wrong.

            Also, how can I combine high resolution segmentation and hippocampal
            subfields segmentation?

            Could someone please help?

            Thanks.

            Best regards,
            Hweeling





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