title: Trying to install Docker-CE on Linux Mint 17.03 - E: Unable to locate package docker-ce
body: <p>I'm trying to install Docker on Linux Mint 17.03. When I follow the steps on the Docker <a href="https://docs.docker.com/engine/installation/linux/docker-ce/ubuntu/#upgrade-docker-after-using-the-convenience-script" rel="nofollow noreferrer">website</a>, I get until the step: </p>
  
  <p>sudo apt-get install docker-ce</p>
  
  <p>This produces the error "E: Unable to locate package docker-ce"</p>
  
  <p>The steps I performed so far are: </p>
  
  <pre><code>sudo apt-get remove docker docker-engine docker.io
  
  sudo apt-get update
  
  sudo apt-get install \
  apt-transport-https \
  ca-certificates \
  curl \
  software-properties-common
  
  curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
  
  sudo add-apt-repository \ "deb [arch=amd64] https://download.docker.com/linux/ubuntu \ $(lsb_release -cs) \ stable"
  
  sudo apt-get update
  
  sudo apt-get install docker-ce
  </code></pre>