LoadError - cannot open shared object file - file is present, but it says no such file

Question

Ruby comes up with LoadErrors I do not understand. It complains about opening a shared object file, while it\'s present.

irb(main):001:0> require         


        

Answer 1

Thanks to jordanm's comment, I was able to solve the issue!

The issue was related to openssl. ldd prints shared object dependencies and revealed the missing libraries.

ldd /usr/lib/ruby/2.3.0/x86_64-linux/openssl.so
...
libssl.so.1.0.0 => not found
libcrypto.so.1.0.0 => not found
...

After installing openssl-1.0 package, (while openssl v1.1.0 package was installed), the output of the same command looks better:

libssl.so.1.0.0 => /usr/lib/libssl.so.1.0.0 (0x00007faddac8f000)
libcrypto.so.1.0.0 => /usr/lib/libcrypto.so.1.0.0 (0x00007fadda814000)

and now, I'm able to require 'openssl' as well as generating a new rails project.

But after all, shouldn't ruby complain about missing packages, or should openssl-1.0 be at least a dependency of rails?