Upgrading Ubuntu from Yakkety to Bionic

I had an old virtual machine that I wanted to upgrade from 16.10 to 18.04

Since Yakkety (16.10) is no longer supported I followed this guide and updated my source list:

sudo sed -i 's/yakkety/bionic/g' /etc/apt/sources.list

I then did the standard commands to upgrade:

sudo apt update
sudo apt upgrade
sudo apt dist-upgrade

However I got this following error after “apt upgrade”:

You might want to run 'apt-get -f install' to correct these.
The following packages have unmet dependencies:
 openjdk-8-jre : Depends: openjdk-8-jre-headless (= 8u232-b09-0ubuntu1~18.04.1) but 8u131-b11-0ubuntu1.16.10.2 is installed
                 Depends: libatk-wrapper-java-jni (>= 0.33.3-9~) but it is not installed
 xorg : Depends: xserver-xorg (>= 1:7.7+19ubuntu7.1)
E: Unmet dependencies. Try using -f.

To fix this I did the following:

sudo dpkg --configure -a
sudo apt-get -f install

Then did the upgrade again:

sudo apt update 
sudo apt upgrade
sudo apt dist-upgrade

Success !

sudo lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 18.04.3 LTS
Release:        18.04
Codename:       bionic