libevent-core dependency conflict error

The following packages have unmet dependencies: libevent-core-2.1-7a : Confilicts: libevent-core-2.1. but 2.1.11-stable-1 is to be installed Error, pkgProblemResolver:Resolver generated breaks, this m

Solutions:-

sudo apt update
sudo apt-mark showhold
sudo apt remove libevent-core-2.1-7a
sudo apt dist-upgrade
sudo apt install mysql-server