blueman-manager crashed with DBusDoesNotExistError in warp(): Device creation in progress

I just tried send some files to Philips Xenium 9@9u mobile phone via bluetooth. then this error happened.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: blueman 1.22~bzr707-1ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-17.27-generic-pae 3.2.6
Uname: Linux 3.2.0-17-generic-pae i686
ApportVersion: 1.94-0ubuntu1
Architecture: i386
Date: Sat Mar 3 19:28:10 2012
ExecutablePath: /usr/bin/blueman-manager
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta i386 (20120301)
InterpreterPath: /usr/bin/python2.7
ProcCmdline: /usr/bin/python /usr/bin/blueman-manager
PythonArgs: ['/usr/bin/blueman-manager']
SourcePackage: blueman
Title: blueman-manager crashed with DBusDoesNotExistError in warp(): Device creation in progress
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo