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Andrew might have a better way to do this, but you could try the following.

Below you should substitute your base path to the freesurfer distribution for where /Applications/freesurfer/dev is used.

1) Setup your freesurfer environment with FREESURFER_HOME and source the setup script, e.g. zsh/bash,

$ export FREESURFER_HOME=/Applications/freesurfer/dev
$ source $FREESURFER_HOME/SetUpFreeSurfer.sh
... output showing environment deleted ...

2) Download the tensorflow package, tensorflow-2.4.1-py3-none-any.whl, via the link, e.g. into $HOME/Downloads
https://drive.google.com/file/d/15Qeve5FIA137KON67ehKIOyXy1N0PbAC/view?usp=sharing

3) Uninstall the existing tensorflow,

$ sudo -H /Applications/freesurfer/dev/python/bin/python3 -m pip uninstall tensorflow

4) Install the downloaded tensorflow (this example assumes it is in your default Downloads folder = $HOME/Downloads).

$ sudo -H /Applications/freesurfer/dev/python/bin/python3 -m pip install $HOME/Downloads/tensorflow-2.4.1-py3-none-any.whl

4) Check you have fspython in your path.  Then test the import succeeds and exit.
$ which fspython
/Applications/freesurfer/dev/bin/fspython
$ fspython
>>> import tensorflow
... output deleted ...
>>> ^D

On Jul 25, 2022, at 11:27, Hoopes, Andrew <AHOOPES@mgh.harvard.edu> wrote:

Unfortunately, tensorflow and M1 don’t mix well at the moment. Not sure if there is a universal fix yet.
 
Rob, do you remember where the mac-specific TF package can be installed from?
 
Best,
Andrew
 

From: freesurfer-bounces@nmr.mgh.harvard.edu <freesurfer-bounces@nmr.mgh.harvard.edu> on behalf of Abdelkarim, Ahmed <a.karam@ucl.ac.uk>
Date: Tuesday, July 12, 2022 at 9:29 AM
To: freesurfer@nmr.mgh.harvard.edu <freesurfer@nmr.mgh.harvard.edu>
Subject: [Freesurfer] SynthSR: Illegal Hardware Instruction

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Hello
 
I have an issue getting SynthSR working with FreeSurfer dev.
I have MacBook Pro with apple M1 chip and MacOS Monterey. 
In bash terminal, after setting up FreeSurfer, and running the SynthSR command, I get this error ‘’Illegal instruction: 4’’.. 
Have you had a similar issue before? Any advice?
 
Many thanks in advance.
 
Regards
Ahmed

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