Update report: Error happens when I went  back to Windows to open the project after that.

bzr: ERROR: exceptions.AssertionError: get_next() called when there are no chars left

Traceback (most recent call last):
  File "D:/Program Files/Bazaar/plugins\explorer\lib\explorer.py", line 1448, in callable_with_cleanup
  File "D:/Program Files/Bazaar/plugins\explorer\lib\explorer.py", line 1616, in _open_location_task
  File "D:/Program Files/Bazaar/plugins\explorer\lib\location_viewer.py", line 161, in add_location
  File "D:/Program Files/Bazaar/plugins\explorer\lib\location.py", line 178, in view
  File "D:/Program Files/Bazaar/plugins\explorer\lib\view_workingtree.py", line 72, in ui
  File "D:/Program Files/Bazaar/plugins\explorer\lib\html_report_view.py", line 51, in ui
  File "D:/Program Files/Bazaar/plugins\explorer\lib\html_report_view.py", line 55, in refresh_view
  File "D:/Program Files/Bazaar/plugins\explorer\lib\view_workingtree.py", line 97, in report_text
  File "D:/Program Files/Bazaar/plugins\explorer\lib\status_report.py", line 195, in __init__
  File "D:/Program Files/Bazaar/plugins\explorer\lib\status_report.py", line 212, in _collect_data
  File "D:/Program Files/Bazaar/plugins\explorer\lib\status_data.py", line 43, in get_status_info
  File "D:/Program Files/Bazaar/plugins\explorer\lib\status_data.py", line 61, in changes_between_trees
  File "bzrlib\tree.pyo", line 94, in changes_from
  File "bzrlib\decorators.pyo", line 151, in read_locked
  File "bzrlib\tree.pyo", line 979, in compare
  File "bzrlib\delta.pyo", line 127, in _compare_trees
  File "bzrlib\tree.pyo", line 103, in iter_changes
  File "bzrlib\workingtree_4.pyo", line 2102, in iter_changes
  File "bzrlib\dirstate.pyo", line 2237, in _read_dirblocks_if_needed
  File "_dirstate_helpers_pyx.pyx", line 796, in bzrlib._dirstate_helpers_pyx._read_dirblocks (bzrlib\_dirstate_helpers_pyx.c:5343)
  File "_dirstate_helpers_pyx.pyx", line 762, in bzrlib._dirstate_helpers_pyx.Reader._parse_dirblocks (bzrlib\_dirstate_helpers_pyx.c:5080)
  File "_dirstate_helpers_pyx.pyx", line 668, in bzrlib._dirstate_helpers_pyx.Reader._get_entry (bzrlib\_dirstate_helpers_pyx.c:4542)
  File "_dirstate_helpers_pyx.pyx", line 577, in bzrlib._dirstate_helpers_pyx.Reader.get_next_str (bzrlib\_dirstate_helpers_pyx.c:4239)
  File "_dirstate_helpers_pyx.pyx", line 559, in bzrlib._dirstate_helpers_pyx.Reader.get_next (bzrlib\_dirstate_helpers_pyx.c:4089)
AssertionError: get_next() called when there are no chars left

bzr 2.4b1 on python 2.6.6 (win32)
arguments: ['D:\\Program Files\\Bazaar\\bzrw.exe', 'explorer']
encoding: 'cp936', fsenc: 'mbcs', lang: None
plugins:
  bzrtools             D:\Program Files\Bazaar\plugins\bzrtools [2.4.0]
  colo                 D:\Program Files\Bazaar\plugins\colo [0.3.0dev]
  explorer             D:\Program Files\Bazaar\plugins\explorer [1.1.3dev]
  fastimport           D:\Program Files\Bazaar\plugins\fastimport [0.11.0dev]
  launchpad            D:\Program Files\Bazaar\plugins\launchpad [2.4b1]
  loom                 D:\Program Files\Bazaar\plugins\loom [2.2.1dev]
  netrc_credential_store D:\Program Files\Bazaar\plugins\netrc_credential_store [2.4b1]
  news_merge           D:\Program Files\Bazaar\plugins\news_merge [2.4b1]
  pipeline             D:\Program Files\Bazaar\plugins\pipeline [1.1.0]
  qbzr                 D:\Program Files\Bazaar\plugins\qbzr [0.21.0dev]
  rewrite              D:\Program Files\Bazaar\plugins\rewrite [0.7.0dev]
  svn                  D:\Program Files\Bazaar\plugins\svn [1.1.0dev]
  upload               D:\Program Files\Bazaar\plugins\upload [1.0.1dev]
  xmloutput            D:\Program Files\Bazaar\plugins\xmloutput [0.8.7]