root@calico14:~/md4/scratch/liberty# BZR_PDB=1 bzr reconfigure --tree
bzr: ERROR: [Errno 2] No such file or directory                                                                                                                                                                    
**** entering debugger
> /usr/lib/python2.7/dist-packages/bzrlib/transform.py(1380)create_symlink()
-> os.symlink(target, self._limbo_name(trans_id))
(Pdb) p target
u''
(Pdb) p self._limbo_name(trans_id)
u'/home/ubuntu/md4/scratch/liberty/.bzr/checkout/limbo/new-15/install'
(Pdb)