E: Unable to locate package libcr-dev

I am trying to run a script (astrophysics stuff) using mpirun. I executed the command:

mpirun -n 3 ./harm

and got this error:

/usr/local/bin/hydra_pmi_proxy: error while loading shared libraries: libcr.so.0: cannot open shared object file: No such file or directory
[mpiexec@sajal-Aspire-E5-574] HYD_pmcd_pmiserv_proxy_init_cb (pm/pmiserv/pmiserv_cb.c:448): assert (!closed) failed
[mpiexec@sajal-Aspire-E5-574] HYDT_dmxu_poll_wait_for_event (tools/demux/demux_poll.c:77): callback returned error status
[mpiexec@sajal-Aspire-E5-574] HYD_pmci_wait_for_completion (pm/pmiserv/pmiserv_pmci.c:196): error waiting for event
[mpiexec@sajal-Aspire-E5-574] main (ui/mpich/mpiexec.c:336): process manager error waiting for completion

Note: harm is the name of the executable script. I did some googling and found that if I install the library called: libcr-dev, the above error (regarding the problem of locating libcr.so.0) might get solve. However, when I try to install it using:

sudo apt-get install libcr-dev

I got the error:

Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package libcr-dev

I try to find the solution to the above problem but I failed. I am using ubuntu 20.04. Could anyone help me?

The libcr package was last available on 18.04 LTS. To install it on 20.04 LTS you have to download and install it manually:

cd ~/Downloads
wget -c http://archive.ubuntu.com/ubuntu/pool/universe/b/blcr/libcr0_0.8.5-2.3_amd64.deb
wget -c http://archive.ubuntu.com/ubuntu/pool/universe/b/blcr/libcr-dev_0.8.5-2.3_amd64.deb

sudo apt-get install ./libcr0_0.8.5-2.3_amd64.deb ./libcr-dev_0.8.5-2.3_amd64.deb

Also I should note that hydra_pmi_proxy is provided by official mpich package. You can use it instead of locally compiled version. This will prevent problems with library and package dependencies.