bzr: ERROR: The file id "TREE_ROOT" is not present in the tree None.

C:\work\MyCode\CITO\cito.barcode>bzr merge-into C:\work\MyCode\CITO\imath\ imath
bzr: ERROR: The file id "TREE_ROOT" is not present in the tree None.

C:\work\MyCode\CITO\cito.barcode>bzr -Derror merge-into C:\work\MyCode\CITO\imath\ imath
bzr: ERROR: bzrlib.errors.NoSuchId: The file id "TREE_ROOT" is not present in the tree None.

Traceback (most recent call last):
  File "bzrlib\commands.pyo", line 912, in exception_to_return_code
  File "bzrlib\commands.pyo", line 1112, in run_bzr
  File "bzrlib\commands.pyo", line 690, in run_argv_aliases
  File "bzrlib\commands.pyo", line 705, in run
  File "bzrlib\cleanup.pyo", line 135, in run_simple
  File "bzrlib\cleanup.pyo", line 165, in _do_with_cleanups
  File "C:\work\Bazaar\plugins\merge_into\__init__.py", line 47, in run
  File "C:\work\Bazaar\plugins\merge_into\merge_into.py", line 174, in merge_into_helper
  File "bzrlib\merge.pyo", line 704, in do_merge
  File "bzrlib\cleanup.pyo", line 135, in run_simple
  File "bzrlib\cleanup.pyo", line 165, in _do_with_cleanups
  File "bzrlib\merge.pyo", line 675, in _do_merge_to
  File "bzrlib\merge.pyo", line 814, in do_merge
  File "bzrlib\cleanup.pyo", line 131, in run
  File "bzrlib\cleanup.pyo", line 165, in _do_with_cleanups
  File "bzrlib\merge.pyo", line 819, in _do_merge
  File "bzrlib\merge.pyo", line 857, in _compute_transform
  File "bzrlib\merge.pyo", line 1369, in _do_merge_contents
  File "bzrlib\merge.pyo", line 1453, in merge_contents
  File "bzrlib\merge.pyo", line 1430, in _default_other_winner_merge
  File "bzrlib\tree.pyo", line 158, in id2path
  File "bzrlib\inventory.pyo", line 770, in id2path
  File "bzrlib\inventory.pyo", line 1379, in _iter_file_id_parents
NoSuchId: The file id "TREE_ROOT" is not present in the tree None.

C:\work\MyCode\CITO\cito.barcode>bzr version
Bazaar (bzr) 2.2.1
  Python interpreter: C:\Program Files\Bazaar\python26.dll 2.6.4
  Python standard library: C:\Program Files\Bazaar\lib\library.zip
  Platform: Windows-XP-5.1.2600-SP3
  bzrlib: C:\Program Files\Bazaar\lib\library.zip\bzrlib
  Bazaar configuration: C:\Documents and Settings\modul98\Application Data\bazaar\2.0
  Bazaar log file: C:\work\.bzr.log

Copyright 2005-2010 Canonical Ltd.
http://bazaar.canonical.com/

bzr comes with ABSOLUTELY NO WARRANTY. bzr is free software, and
you may use, modify and redistribute it under the terms of the GNU
General Public License version 2 or later.

Bazaar is part of the GNU Project to produce a free operating system.

Plugin merge-into has been taken from lp:bzr-merge-into.

Both branches are in 1.14 format (without rich roots).