Comment 3 for bug 1577524

I am using an older version of juju as it has been stable on our systems.

sudo apt-cache policy juju
juju:
  Installed: 2.0-beta5-0ubuntu1~16.04.1~juju1
  Candidate: 2.0-beta5-0ubuntu1~16.04.1~juju1
  Version table:
 *** 2.0-beta5-0ubuntu1~16.04.1~juju1 500
        500 http://ppa.launchpad.net/juju/enablement/ubuntu xenial/main arm64 Packages
        100 /var/lib/dpkg/status
     2.0~beta6-0ubuntu1.16.04.1 500
        500 http://ports.ubuntu.com/ubuntu-ports xenial-updates/main arm64 Packages
     2.0~beta4-0ubuntu2 500
        500 http://ports.ubuntu.com/ubuntu-ports xenial/main arm64 Packages