Error in install packages about libnetcdf.so.15 not found (Ubuntu 22.04.01): a solution

If you install netcdf library using:

sudo apt-get install libapparmor1 libcurl4-openssl-dev netcdf-bin libnetcdf-dev udunits-bin libudunits2-dev

It will install the current version of libnetcdf in  /usr/lib/x86_64-linux-gnu/

It can be seen with :

cd  /usr/lib/x86_64-linux-gnu/

ls -al libnetcdf*

-rw-r--r-- 1 root root    1200 sept. 29  2021 libnetcdf.settings

lrwxrwxrwx 1 root root      15 sept. 29  2021 libnetcdf.so -> libnetcdf.so.19

-rw-r--r-- 1 root root 1346880 sept. 29  2021 libnetcdf.so.19


But when you try to install or update tidync package, it will produce an error:

Erreur dans dyn.load(file, DLLpath = DLLpath, ...) : 

  impossible de charger l'objet partagé '/usr/local/lib/R/site-library/ncdf4/libs/ncdf4.so':

  libnetcdf.so.15: cannot open shared object file: No such file or directory

It search for libnetcdf.so.15 which is an outdated version.

The solution is to symlink libnetcdf.so.15 with the most recent version which is itself a symlink !

sudo ln -s /usr/lib/x86_64-linux-gnu/libnetcdf.so /usr/lib/x86_64-linux-gnu/libnetcdf.so.15

And now you can update tidync


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