Dear freesurfers,

Recon-all -s subject -autorecon2 returns the following error messages

mri_segstats will not calculate Supratentorial due to missing ribbon.mgz file

mghRead(Path_to_subject/mri/ribbon.mgz, -1): could not open file.

Prior to autorecon2, I did recon-all -s subject -autorecon1, which completed without errors.

I found a similar problem in the archive, 

https://mail.nmr.mgh.harvard.edu/pipermail//freesurfer/2013-May/030025.html

and I will follow the suggestion given. In the same time, does anybody know what is going wrong?

Thank you very much!

Sincerely,
Ye