niedbalski@theos-mobile:~$ juju add-machine --series=trusty --constraints="arch=amd64"
"22": agent-state-info: invalid binary version "1.23.3--armhf" instance-id: pending series: trusty
niedbalski@ theos-mobile: ~$ juju add-machine --series=trusty --constraints= "arch=amd64"
"22": state-info: invalid binary version "1.23.3--armhf"
agent-
instance-id: pending
series: trusty