Ah, thank you Anastasia! I'm glad it's that straightforward.

Best, John ________________________________ From: freesurfer-bounces@nmr.mgh.harvard.edu freesurfer-bounces@nmr.mgh.harvard.edu on behalf of freesurfer-request@nmr.mgh.harvard.edu freesurfer-request@nmr.mgh.harvard.edu Sent: Tuesday, September 21, 2021 12:00 PM To: freesurfer@nmr.mgh.harvard.edu freesurfer@nmr.mgh.harvard.edu Subject: Freesurfer Digest, Vol 211, Issue 32

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Today's Topics:

1. Tcl_Init error on Ubuntu (Kevin Nguyen) 2. Brainstem segmentation (Erik O'Hanlon) 3. Re: Tcl_Init error on Ubuntu (fsbuild) 4. Re: TRACULA mri_convert error (Yendiki, Anastasia)

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Message: 1 Date: Mon, 20 Sep 2021 18:35:47 +0200 From: Kevin Nguyen kevin.nguyen0196@gmail.com Subject: [Freesurfer] Tcl_Init error on Ubuntu To: freesurfer@nmr.mgh.harvard.edu Message-ID: 6ccc849b-5e1c-5cd3-a53b-030b2838858c@gmail.com Content-Type: text/plain; charset="utf-8"

External Email - Use Caution

Hey FreeSurfer community!

I am running into a problem when trying to use the command "qdec --table $SUBJECTS_DIR/cross.qdec.table.dat" on my data. The following error message is shown:

""" Tcl_Init error: Can't find a usable init.tcl in the following directories: ???? /usr/pubsw/packages/tcltktixblt/current/lib/tcl8.4 /home/kevin/freesurfer/lib/tcl8.4 /home/kevin/lib/tcl8.4 /home/kevin/freesurfer/library /home/kevin/library /home/kevin/tcl8.4.6/library /home/tcl8.4.6/library /usr/pubsw/packages/tcltktixblt/current/lib/tcl8.4

This probably means that Tcl wasn't installed properly.

Error initializing Tcl.

"""

I suppose there are version issues between the FreeSurfer version of Tcl (8.4.6?) and my own version (8.6). I would very much appreciate any help with that error:) Also, I am very new to Unix and FreeSurfer. I am running the latest FreeSurfer version as well as Ubuntu 20.04.3 LTS.

Thanks in advance for your help!

Best,

Kevin