Apologies for repeat email – I’m getting the following error message, is there something I should add?

developer@developer-VirtualBox:~$ mri_convert i.mgz i.img

mri_convert i.mgz i.img

reading from i.mgz...

error: mghRead(/home/developer/i.mgz, -1): could not open file

developer@developer-VirtualBox:~$

From: Rachel Wagner
Sent: June 15, 2022 5:04 PM
To: Freesurfer@nmr.mgh.harvard.edu
Subject: SPM to FreeSurfer

Hello,

I am trying to take my SPM images and cortically project them with free surfer (SpmPainting - Free Surfer Wiki (harvard.edu). As it might be quite obvious, I have very little experience using these softwares.

I am typing in the suggested code as follows:

developer@developer-VirtualBox:~$ mri_convert $SUBJECTS_DIR/subjectname/mri/brain.mgz brain.img

mri_convert /usr/local/freesurfer/7.2.0/subjects/subjectname/mri/brain.mgz brain.img

reading from /usr/local/freesurfer/7.2.0/subjects/subjectname/mri/brain.mgz...

error: mghRead(/usr/local/freesurfer/7.2.0/subjects/subjectname/mri/brain.mgz, -1): could not open file

developer@developer-VirtualBox:~$ ^C

developer@developer-VirtualBox:~$

Is there something I am doing incorrectly?

Thank you!

Rachel