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Hello Juan,

For CentOS try:
$ sudo yum install gcc-gfortran.x86_64
… if that does not work then,
$ sudo yum install libgfortran.x86_64

For Ubuntu,
$sudo apt-get install gfortran

One thing you might want to try first is to run the “ldd” command on the freeview binary to see all/any libraries that are missing....

This should return the path to freeview, e.g., /usr/local/bin/freeview, though your path may differ.
$ which freeview
/usr/local/bin/freeview

- then check you have the ldd command, 
$ which ldd
/usr/bin/ldd

If the above returned paths for freeview and ldd, then run the ldd command followed by the grep command to see what libraries are missing.  Prior to doing the install of libgfortran above, it should list libgfortran is missing.

$ ldd `which freeview` | grep not

Also it would be good to know what linux you are running, e.g., CentOS 7, Ubuntu 18, etc.

- R.

On Jul 15, 2019, at 12:39, Juan Rivas <jcrn12@gmail.com> wrote:

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---------- Forwarded message ---------
De: Juan Rivas <jcrn12@gmail.com>
Date: vie., 12 jul. 2019 a las 3:02
Subject: Re: [Freesurfer] Freeview
To: fsbuild <fsbuild@contbay.com>


Hi, thank you for your answer.
I did what you recommended to me, and I get this message:
freeview: error while loading shared libraries: libgfortran.so.3: cannot open shared object file: No such file or directory.
What could be the next step?
JC.

El lun., 15 jul. 2019 a las 9:57, fsbuild (<fsbuild@contbay.com>) escribió:
Hello JC,

Your machine could be missing the qt5 libraries/files.

On Ubuntu linux you can try installing them with,
$ sudo apt-get install qt5-default qtcreator libqt5x11extras5-dev

On CentOS linux,
$ sudo yum install qt-create qt-config.x86_64
$ sudo yum install qt5-qtx11extras.x86_64 qt5-qtx11extras-devel..x86_64

- R.

On Jul 12, 2019, at 02:28, Juan Rivas <jcrn12@gmail.com> wrote:

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Hello, I am trying to use freeview, but everytime I try I get this message:
freeview: error while loading shared libraries: libQt5Widgets.so.5: cannot open shared object file: No such file or directory.
How can I fix it?
Thanks a lot,
JC.
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