Is your Freesurfer Environment sourced correctly? Here is the wiki help https://surfer.nmr.mgh.harvard.edu/fswiki/SetupConfiguration_Linux

Best,

Yujing

From: freesurfer-bounces@nmr.mgh.harvard.edu freesurfer-bounces@nmr.mgh.harvard.edu On Behalf Of Gregory Book Sent: Tuesday, April 23, 2024 9:21 AM To: freesurfer freesurfer@nmr.mgh.harvard.edu Subject: [Freesurfer] Problem running recon-all

External Email - Use Caution I recently installed freesurfer 7.4.1 on a Debian 12 system (using the Ubuntu 22 .tar.gz). When running recon-all, I get the following error:

-bash: /opt/freesurfer/freesurfer-7.4.1/bin/recon-all: cannot execute: required file not found

Paths are all set, and all scripts and executables have execute permissions. What might be happening?