Fails to install on Ubuntu 16.04 - Unable to run apt-get update

[philrumble-fz]

I ran curl -fsSL https://get.docker.com -o get-docker.sh sh get-docker.sh

and it fails with

• sh -c apt-get update -qq >/dev/null W: The repository 'https://download.docker.com/linux/ubuntu xenial Release' does not have a Release file. E: Failed to fetch https://download.docker.com/linux/ubuntu/dists/xenial/stable/binary-amd64/Packages
  E: Some index files failed to download. They have been ignored, or old ones used instead.

The file /etc/apt/sources.list contains, which matches the documentation.

deb [arch=amd64] https://download.docker.com/linux/ubuntu xenial stable