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Try downloading and installing the freesurfer .deb or.rpm linux package installer that matches your OS .. from,
https://surfer.nmr.mgh.harvard.edu/pub/dist/freesurfer/dev/stable/

For example, on Rocky8 linux (uses RedHat lkie .rpm files),  install the .rpm file from where you downloaded it with, e.g., 
$ sudo yum install ./freesurfer-Rocky8-7.0.0-dev.x86_64.rpm

On Ubuntu22 linux, i,e, uses debian like .pkg files), install the .deb file from where you downloaded it with,
$ sudo apt install ./freesurfer_ubuntu22-7-dev_amd64.deb

Those package installers should automatically install any missing libraries on you system like libpng12.so.  Downloading and expanding one of the freesurfer *.tar.gz archives will not do an actual install, i.e. won’t check for or try to install missing libraries on your system needed to run freesurfer.

Then setup the freesurfer environment as listed here,
https://surfer.nmr.mgh.harvard.edu/fswiki/SetupConfiguration_Linux

- R.

On Oct 11, 2024, at 14:00, Harsh Srivastava <harsh.sriv@iitb.ac.in> wrote:

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Dear Freesurfer team,

I have Freesurfer installed on Linux. All Freesurfer commands work well, however, I am not able to open freeview. I get this error:

freeview.bin: error while loading shared libraries: libpng12.so.0: cannot open shared object file: No such file or directory

Please let me know how it can be resolved.

Warm regards,

-- 
Harsh Srivastava (he/him),
23M0132 (2nd year),
MTech Biomedical Engineering,
Department of Biosciences and Bioengineering,
Indian Institute of Technology Bombay,
Mumbai, India.
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