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Hello FreeSurfer Developers,

I am attempting to use Qdec to perform group comparisons and use the interactive UI to identify which subjects have a significant influence on my clusters. I’m currently running the stable version 6.0 of FreeSurfer.

However, Qdec returns an error indicating that my license is invalid. Other FreeSurfer commands run without any issues — it seems that only Qdec reports this error when I run the analysis.

Could you please advise on how to resolve this issue?

Thank you very much for your time and help.

I have attached the terminal screen and the license below.

Regards, Henry.

[cid:image001.png@01DC5326.B7453120]

Hiệp ĐỖ (Henry DO) Tran Minh Hiep DO (Henry DO) PhD Candidate | B.Biomed.Eng Faculty of Science, School of Psychology

THE UNIVERSITY OF SYDNEY FRONTIER Frontotemporal Dementia Research Group | Brain and Mind Centre | M02G | Level 1, 94 Mallet Street | Camperdown | NSW | 2050

Contact: +61 451 973 339 Email: trdo0838@sydney.edu.aumailto:trdo0838@sydney.edu.au