Comment 0 for bug 1510688

# Juju is 1.24.7
$ juju version
1.24.7-wily-amd64

# State server is 1.20.14
$ juju status -e peril
environment: peril
machines:
  "0":
    agent-state: started
    agent-version: 1.20.14
    dns-name: ec2-54-86-190-59.compute-1.amazonaws.com
    instance-id: i-d1e2ec60
    instance-state: running
    series: trusty
    hardware: arch=amd64 cpu-cores=1 cpu-power=100 mem=1740M root-disk=8192M
    state-server-member-status: has-vote
services: {}

# Sync tools tries to upload agents we know won't be accepted:
$ juju sync-tools -e peril
ERROR tools upload failed: 400 ({"Tools":null,"DisableSSLHostnameVerification":false,"Error":{"Message":"cannot get environment config: invalid series \"centos7\"","Code":""}})