Switching to a specific revision for the second time

[Chris Stalenhoef]

I switched back to an older revision without any problems. Now I try to switch to a slightly newer revision, still not the latest, and bazaar reports the following error.

bzr: ERROR: exceptions.AttributeError: 'NoneType' object has no attribute 'get_c
onfig'

Traceback (most recent call last):
  File "bzrlib\commands.pyo", line 853, in exception_to_return_code
  File "bzrlib\commands.pyo", line 1055, in run_bzr
  File "bzrlib\commands.pyo", line 661, in run_argv_aliases
  File "bzrlib\commands.pyo", line 665, in run_direct
  File "bzrlib\cleanup.pyo", line 122, in run_simple
  File "bzrlib\cleanup.pyo", line 156, in _do_with_cleanups
  File "bzrlib\builtins.pyo", line 5519, in run
  File "bzrlib\switch.pyo", line 40, in switch
  File "bzrlib\switch.pyo", line 138, in _update
  File "bzrlib\merge.pyo", line 755, in __init__
  File "bzrlib\merge.pyo", line 766, in do_merge
  File "bzrlib\cleanup.pyo", line 118, in run
  File "bzrlib\cleanup.pyo", line 156, in _do_with_cleanups
  File "bzrlib\merge.pyo", line 772, in _do_merge
  File "bzrlib\merge.pyo", line 814, in _compute_transform
  File "bzrlib\merge.pyo", line 1302, in _do_merge_contents
  File "bzrlib\merge.pyo", line 161, in merge_contents
  File "bzrlib\merge.pyo", line 133, in filename_matches_config
AttributeError: 'NoneType' object has no attribute 'get_config'

bzr 2.1.1 on python 2.5.4 (Windows-Vista-6.1.7600)
arguments: ['bzr', 'switch', '-r', '249.26.3']
encoding: 'cp1252', fsenc: 'mbcs', lang: None
plugins:
  bzrtools C:\Program Files (x86)\Bazaar\plugins\bzrtools [2.1.0]
  explorer C:\Program Files (x86)\Bazaar\plugins\explorer [1.0.2]
  extmerge C:\Program Files (x86)\Bazaar\plugins\extmerge [unknown]
  launchpad C:\Program Files (x86)\Bazaar\plugins\launchpad [2.1.1]
  netrc_credential_store C:\Program Files (x86)\Bazaar\plugins\netrc_credential_
store [2.1.1]
  news_merge C:\Program Files (x86)\Bazaar\plugins\news_merge [2.1.1]
  qbzr C:\Program Files (x86)\Bazaar\plugins\qbzr [0.18.4]
  rebase C:\Program Files (x86)\Bazaar\plugins\rebase [0.5.5]
  svn C:\Program Files (x86)\Bazaar\plugins\svn [1.0.2]
  upload C:\Program Files (x86)\Bazaar\plugins\upload [1.0.0dev]
  xmloutput C:\Program Files (x86)\Bazaar\plugins\xmloutput [0.8.7.de
v]

*** Bazaar has encountered an internal error. This probably indicates a
    bug in Bazaar. You can help us fix it by filing a bug report at
        https://bugs.launchpad.net/bzr/+filebug
    including this traceback and a description of the problem.

Version:
Bazaar (bzr) 2.1.1
  Python interpreter: C:\Program Files (x86)\Bazaar\python25.dll 2.5.4
  Python standard library: C:\Program Files (x86)\Bazaar\lib\library.zip
  Platform: Windows-Vista-6.1.7600
  bzrlib: C:\Program Files (x86)\Bazaar\lib\library.zip\bzrlib
  Bazaar configuration: C:\Users\chris\AppData\Roaming\bazaar\2.0
  Bazaar log file: C:\Users\chris\Documents\.bzr.log

Copyright 2005-2010 Canonical Ltd.
http://bazaar-vcs.org/

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.

Cheers,
Chris.

[Andrew Bennetts (spiv)]

This bug has already been fixed in bzr 2.1.2.