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I recently installed Ubuntu 18.04.1. Now, when I try to run a mpi Fortran code, there is an error loading the shared library: libgfortran.so.3 and the code does not execute. I tried to reinstall gfortran, mpich, and gcc by removing the software, but I cannot remove them using sudo apt-get remove gfortran because the removal aborts when I am asked whether I want to continue. When I try to make an executable, an unknown file type is generated for the executable.

N0rbert
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Ocean Waves
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2 Answers2

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According to packages.ubuntu.com you should install libgfortran3 package, as it contains /usr/lib/x86_64-linux-gnu/libgfortran.so.3:

sudo apt-get install libgfortran3

Note: if your software is 32-bit, then install two corresponding packages:

sudo apt-get install lib32gfortran3 libx32gfortran3
N0rbert
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It is true that some packages are not supported in Ubuntu 20.04, which is because of there dependency on previous versions of gcc or libgfortran.

In my case I was not able to install Seisan V11 on my Ubuntu 20.04. Apparently this software should not be supporting in Ubuntu 20.04 because of error in shared libraries.

But some how I managed to solve the problem and now Seisan is working, although it has some back trace errors.

Make sure to go to this site and to do the following https://stackoverflow.com/a/65956351/16305143

One may use this site if they face any problem in editing /etc/apt/sources.list. How do I add a line to my /etc/apt/sources.list?

Shirish Bose
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