bzr crashed with TypeError in from_string(): unbound method get_format_string() must be called with BzrBranchLoomFormat7 instance as first argument (got nothing instead)

[Barry Warsaw]

$ bzr init-repo dbus
$ cd dbus
$ bzr branch ubuntu:dbus precise
$ bzr branch precise bug-12345
$ cd bug-12345
$ bzr loomify --base trunk
<crash>

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: bzr 2.5.0~beta5-3ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-12.20-generic 3.2.2
Uname: Linux 3.2.0-12-generic x86_64
ApportVersion: 1.91-0ubuntu1
Architecture: amd64
BzrDebugFlags: set()
BzrVersion: 2.5b5
CommandLine: ['/usr/bin/bzr', 'loomify', '--base', 'trunk']
CrashDb: bzr
Date: Tue Jan 31 16:09:20 2012
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/bzr
FileSystemEncoding: UTF-8
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64 (20110705.1)
InterpreterPath: /usr/bin/python2.7
Locale: en_US.UTF-8
PackageArchitecture: all
Platform: Linux-3.2.0-12-generic-x86_64-with-Ubuntu-12.04-precise
ProcCmdline: /usr/bin/python /usr/bin/bzr loomify --base trunk
PythonVersion: 2.7.2
SourcePackage: bzr
Title: bzr crashed with TypeError in from_string(): unbound method get_format_string() must be called with BzrBranchLoomFormat7 instance as first argument (got nothing instead)
UpgradeStatus: Upgraded to precise on 2011-12-23 (39 days ago)
UserEncoding: utf-8
UserGroups: adm admin cdrom dialout fuse libvirtd lpadmin plugdev sambashare sbuild

[Launchpad Janitor (janitor)]

This bug was fixed in the package bzr-loom - 2.2.0-1

---------------
bzr-loom (2.2.0-1) unstable; urgency=low

  * Add script for automatically updating dependencies on merge.
  * New upstream release.
   + Fixes compatibility with newer versions of bzr. LP: #924521

 -- Jelmer Vernooij <email address hidden> Sun, 26 Feb 2012 17:51:52 +0100