ubuntuone-syncdaemon crashed with SIGSEGV in g_typelib_get_dir_entry_by_gtype()

Binary package hint: ubuntuone-client

I got this crash on login

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: ubuntuone-client 1.5.5-0ubuntu2
ProcVersionSignature: Ubuntu 2.6.38-5.32-generic 2.6.38-rc6
Uname: Linux 2.6.38-5-generic x86_64
Architecture: amd64
Date: Mon Mar 7 16:11:33 2011
ExecutablePath: /usr/lib/ubuntuone-client/ubuntuone-syncdaemon
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110223)
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/lib/ubuntuone-client/ubuntuone-syncdaemon
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, user)
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
SegvAnalysis:
 Segfault happened at: 0x7f2444197b04 <g_typelib_get_dir_entry_by_gtype+20>: movzwl 0x16(%r12),%r13d
 PC (0x7f2444197b04) ok
 source "0x16(%r12)" (0x200000017) not located in a known VMA region (needed readable region)!
 destination "%r13d" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: ubuntuone-client
StacktraceTop:
 g_typelib_get_dir_entry_by_gtype () from /usr/lib/libgirepository-1.0.so.1
 ?? () from /usr/lib/libgirepository-1.0.so.1
 g_hash_table_foreach () from /lib/libglib-2.0.so.0
 g_irepository_find_by_gtype () from /usr/lib/libgirepository-1.0.so.1
 ?? () from /usr/lib/pymodules/python2.7/gi/_gi.so
Title: ubuntuone-syncdaemon crashed with SIGSEGV in g_typelib_get_dir_entry_by_gtype()
UbuntuOneSyncdaemonExceptionsLog:

UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare