jitendra@jitendra-Dell-System-XPS-L502X:~$ sudo apt-get purge libmono-security4.0-cil
Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
 libmono-system-security4.0-cil : Depends: libmono-security4.0-cil (>= 3.0.6) but it is not going to be installed
 libmono-system4.0-cil : Depends: libmono-security4.0-cil (>= 3.0.6) but it is not going to be installed
 mono-4.0-gac : Depends: libmono-security4.0-cil (>= 3.0.6) but it is not going to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).