The following was filed automatically by anaconda:
anaconda 16.13 exception report
Traceback (most recent call first):
  File "/usr/lib64/python2.7/site-packages/pyanaconda/storage/devices.py", line 790, in create
    raise DeviceCreateError(str(e), self.name)
  File "/usr/lib64/python2.7/site-packages/pyanaconda/storage/deviceaction.py", line 241, in execute
    self.device.create(intf=intf)
  File "/usr/lib64/python2.7/site-packages/pyanaconda/storage/devicetree.py", line 316, in processActions
    action.execute(intf=self.intf)
  File "/usr/lib64/python2.7/site-packages/pyanaconda/storage/__init__.py", line 383, in doIt
    self.devicetree.processActions()
  File "/usr/lib64/python2.7/site-packages/pyanaconda/packages.py", line 122, in turnOnFilesystems
    anaconda.storage.doIt()
  File "/usr/lib64/python2.7/site-packages/pyanaconda/dispatch.py", line 338, in dispatch
    self.dir = self.steps[self.step].target(self.anaconda)
  File "/usr/lib64/python2.7/site-packages/pyanaconda/dispatch.py", line 235, in go_forward
    self.dispatch()
  File "/usr/lib64/python2.7/site-packages/pyanaconda/gui.py", line 1198, in nextClicked
    self.anaconda.dispatch.go_forward()
DeviceCreateError: ('lvcreate failed for vg_koji/lv_swap:   /dev/vg_koji/lv_swap: not found: device not cleared\n  Aborting. Failed to wipe start of new LV.\n', 'vg_koji-lv_swap')