Description of problem:
1] Start anaconda installation
2] Get traceback

Version-Release number of selected component:
anaconda-20.9-1

The following was filed automatically by anaconda:
anaconda 20.9-1 exception report
Traceback (most recent call first):
  File "/usr/lib/python2.7/site-packages/dbus/connection.py", line 651, in call_blocking
    message, timeout)
  File "/usr/lib/python2.7/site-packages/dbus/proxies.py", line 145, in __call__
    **keywords)
  File "/usr/lib/python2.7/site-packages/dbus/proxies.py", line 70, in __call__
    return self._proxy_method(*args, **keywords)
  File "/tmp/updates/pyanaconda/ui/gui/spokes/network.py", line 82, in getNMObjProperty
    prop)
  File "/tmp/updates/pyanaconda/ui/gui/spokes/network.py", line 759, in _refresh_device_cfg
    addr, _prefix, _gw = getNMObjProperty(config, ".IP6Config", "Addresses")[0]
  File "/tmp/updates/pyanaconda/ui/gui/spokes/network.py", line 707, in refresh_ui
    self._refresh_device_cfg(device, state)
  File "/tmp/updates/pyanaconda/ui/gui/spokes/network.py", line 388, in on_device_selection_changed
    self.refresh_ui(device)
DBusException: org.freedesktop.DBus.Error.UnknownMethod: Method "Get" with signature "ss" on interface "org.freedesktop.DBus.Properties" doesn't exist


Additional info:
cmdline:        /usr/bin/python  /sbin/anaconda
cmdline_file:   initrd=/test/mk/fedora/initrd.img root=live:http://cobra02/trees/mk/my_comps_squashfs.img nokill updates=http://cobra02/ks/mk/master_updates.img resolution=1024x768 ks=http://cobra02/ks/mk/testing.ks BOOT_IMAGE=/test/mk/fedora/vmlinuz 
executable:     /sbin/anaconda
hashmarkername: anaconda
kernel:         3.11.0-0.rc7.git5.1.fc20.x86_64
product:        Fedora
release:        Cannot get release name.
type:           anaconda
version:        20

Potential duplicate: bug 1003205