Can not install Ros Melodic, Why?

Question

I am running Ubuntu 17.10 on a virtual machine. I am trying to install Ros Melodic but when I try to follow the instructions provided, I get this error:

E: Unable to locate packages ros-melodic-desktop-full

I've tried the ros-shadow-fix solution but that does not work. I need help, please.

Answer 1

I think something went wrong when you set up your sources or keys. Try to follow the following and let us know if everything works well.

Setup your sources.list

This is done in order to make your computer accept software from packages.ros.org.

sudo sh -c 'echo "deb http://packages.ros.org/ros/ubuntu $(lsb_release -sc) main" > /etc/apt/sources.list.d/ros-latest.list'

Set up your keys

sudo apt-key adv --keyserver 'hkp://keyserver.ubuntu.com:80' --recv-key C1CF6E31E6BADE8868B172B4F42ED6FBAB17C654

Installation

Make sure your Debian package index is up-to-date:

sudo apt update

Check that all these commands are giving a successful output.