[ffmpeg] error while loading shared libraries: libblas.so.3

[nguyenvulong]

Full error

ffmpeg: error while loading shared libraries: libblas.so.3: cannot open shared object file: No such file or directory

Fix
First you need to find your shared objects, for example:

sudo find /usr/lib -name libblas.so.3

Then soft-link the necessary files:

sudo ln -s /usr/lib/x86_64-linux-gnu/blas/libblas.so.3 /usr/lib/x86_64-linux-gnu/
sudo ln -s /usr/lib/x86_64-linux-gnu/lapack/liblapack.so.3 /usr/lib/x86_64-linux-gnu/

if it helps, please stop the haters in stackoverflow by upvoting my answer here

https://stackoverflow.com/questions/75414336/libblas-so-3-cannot-open-shared-object-file-no-such-file-or-directory-but-it