You might want to run 'apt --fix-broken install' to correct these.
The following packages have unmet dependencies:
libmariadb3 : Depends: mariadb-common but it is not going to be installed
E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution).
You might want to run 'apt --fix-broken install' to correct these.
The following packages have unmet dependencies:
g++ : Depends: cpp (= 4:8.3.0-1) but it is not going to be installed
Depends: gcc (= 4:8.3.0-1) but it is not going to be installed
Depends: g++-8 (>= 8.3.0-1~) but it is not going to be installed
Depends: gcc-8 (>= 8.3.0-1~) but it is not going to be installed
libmariadb3 : Depends: mariadb-common but it is not going to be installed
E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution).