Dear FreeSurfer experts,

I am trying to administer group-level analyses using the Human Connectome Project dataset. I downloaded extended processed structural data from the HCP webpage and processed FreeSurfer data were available there. So I ran qcache as a preparatory step for group level analysis but there was an error message (below).

ERROR: cannot find /Volumes/JW/FS/100206/surf/lh.white.K

The HCP's processed FreeSurfer data did not have lh.white.H/lh.white.K/rh.white.H/rh.white.K files. Could you please let me know if there is any way I can run qcache without the K (or H) files? Or should I run recon-all -qcache my own using the HCP's T1 data?

Thank you in advance for your help and have a good weekend.

Best,