Description of problem:
Booting rawhide network installer under Virtualbox 5.0.

Version-Release number of selected component:
anaconda-23.15-1

The following was filed automatically by anaconda:
anaconda 23.15-1 exception report
Traceback (most recent call first):
  File "/usr/lib64/python3.4/site-packages/pyanaconda/ui/gui/spokes/langsupport.py", line 24, in <module>
    gi.require_verseion("Pango", "1.0")
  File "/usr/lib64/python3.4/site-packages/pyanaconda/ui/common.py", line 596, in collect
    __import__(module_pattern % mod_name)
  File "/usr/lib64/python3.4/site-packages/pyanaconda/ui/__init__.py", line 158, in _collectActionClasses
    standalones.extend(collect(module_pattern, path, lambda obj: issubclass(obj, standalone_class) and \
  File "/usr/lib64/python3.4/site-packages/pyanaconda/ui/gui/__init__.py", line 643, in getActionClasses
    standalones = self._collectActionClasses(self.paths["spokes"], StandaloneSpoke)
  File "/usr/lib64/python3.4/site-packages/pyanaconda/ui/gui/__init__.py", line 633, in setup
    self._actions = self.getActionClasses(self._list_hubs())
  File "/sbin/anaconda", line 1370, in <module>
    anaconda._intf.setup(ksdata)
AttributeError: 'module' object has no attribute 'require_verseion'

Additional info:
addons:         com_redhat_kdump
cmdline:        /usr/bin/python3  /sbin/anaconda
cmdline_file:   BOOT_IMAGE=vmlinuz initrd=initrd.img inst.stage2=hd:LABEL=Fedora-rawhide-x86_64 rd.live.check quiet
dnf.rpm.log:    Jul 18 19:07:26 INFO --- logging initialized ---
executable:     /sbin/anaconda
hashmarkername: anaconda
kernel:         4.2.0-0.rc2.git0.1.fc23.x86_64
product:        Fedora
release:        Cannot get release name.
type:           anaconda
version:        Rawhide

Potential duplicate: bug 1243090