Upgrade from Ubuntu 14.04 to 16.04 can't use MySql anymore

[rick pizzi]

Tried upgrade from 14.04 to 16.04 on Pure Linux machine. Couldn't run mysql anymore. Trying to purge MySql and re-install. Got following message:


You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
libmariadbclient18 : Depends: libmysqlclient18 (= 10.1.23+maria-1~xenial) but it is not going to be installed

I used sudo service mysql stop
sudo apt-get --purge remove "mysql*"
sudo rm -rf /etc/mysql/

Any idea on how to fix this.

thanks, R