# Pastebin kOMSIt94
2015-06-10 17:02:29,799 Exception running task <PruneChangeTask 2260>
Traceback (most recent call last):
  File "/Users/dougw/work/a10/gertty/gertty/sync.py", line 1306, in _run
    task.run(self)
  File "/Users/dougw/work/a10/gertty/gertty/sync.py", line 1225, in run
    repo.deleteRef(change_ref)
  File "/Users/dougw/work/a10/gertty/gertty/gitrepo.py", line 272, in deleteRef
    git.Reference.delete(repo, ref)
  File "/usr/local/lib/python2.7/site-packages/git/refs/symbolic.py", line 419, in delete
    os.remove(abs_path)
OSError: [Errno 1] Operation not permitted: '/Users/dougw/work/gertty/openstack/neutron-vpnaas/.git/refs/changes/83/160983'