error while loading shared libraries: libsilvia.so.0

[GitRob26]

I am encountering this issue after a successful install when executing silvia_keygen -h.
Whole error-code is:
silvia_keygen: error while loading shared libraries: libsilvia.so.0: cannot open shared object file: No such file or directory
I can neither find the library/directory nor an explanation online or someone who encountered this problem before me. If somebody has an idea why this keeps popping up please let me know.

[confiks]

While not at all being an answer to your question, you could also use a Golang software package named irmatool to generate a Idemix / CL keypair. This project hasn't been touched since 2016.

After installing the Go toolchain:
go get github.com/mhe/irmatool
irmatool genkeypair -a 6 -l 2048 -p public_key.xml -k private_key.xml -v 10y