Comment 7 for bug 1515188

I'm running into this problem as well when adding vm's from vcenter via add-hardware -> add-chassis -> power-type = vmware.

log shows:

Apr 19 11:34:59 maas maas.rpc.cluster: [ERROR] Failed to probe and enlist VMware nodes: 'vim.Folder' object has no attribute 'summary'

using vcenter 5.5 appliance build 325642
esxi servers are 5.5 U3 - build 3248547

vm's are in a folder called maas. I also tried with no folders.

maas:

root@maas:/var/log/maas# apt-cache policy maas
maas:
  Installed: 1.9.1+bzr4543-0ubuntu1~trusty1
  Candidate: 1.9.1+bzr4543-0ubuntu1~trusty1
  Version table:
 *** 1.9.1+bzr4543-0ubuntu1~trusty1 0
        500 http://ppa.launchpad.net/maas/stable/ubuntu/ trusty/main amd64 Packages
        100 /var/lib/dpkg/status

root@maas:/var/log/maas# apt-cache policy python-pyvmomi
python-pyvmomi:
  Installed: 5.5.0-1ubuntu1
  Candidate: 5.5.0-1ubuntu1
  Version table:
 *** 5.5.0-1ubuntu1 0
        500 http://ppa.launchpad.net/maas/stable/ubuntu/ trusty/main amd64 Packages
        100 /var/lib/dpkg/status

root@maas:/var/log/maas# cat /etc/*-rel*
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=14.04
DISTRIB_CODENAME=trusty
DISTRIB_DESCRIPTION="Ubuntu 14.04.4 LTS"
NAME="Ubuntu"
VERSION="14.04.4 LTS, Trusty Tahr"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 14.04.4 LTS"
VERSION_ID="14.04"
HOME_URL="http://www.ubuntu.com/"
SUPPORT_URL="http://help.ubuntu.com/"
BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"