External Email - Use Caution        

I tried doing cortical parcellation using Destrieux atlas.  I ran the aparcstats2table command from the SUBJECTS_DIR directory containing all of the output from recon-all.
But I got an error, PFA. Do I need to run any other commands before running aparcstats2table command, I would be grateful if anyone could  help me to resolve this issue.

Many thanks in advance.
Regards
Devika K
Research Scholar, Dept of EEE
Amrita Vishwa Vidyapeetham
Coimbatore, India