The following packages have unmet dependencies:
 libssl-dev : Depends: libssl1.1 (= 1.1.0g-2ubuntu4) but 1.1.0g-2ubuntu4.1 is to be installed
              Recommends: libssl-doc but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

 sudo apt-get install libssl1.1=1.1.0g-2ubuntu4