ubuntuone-login crashed with ValueError in call_async(): Unable to guess signature from an empty dict

[spartan15]

Binary package hint: ubuntuone-client

crash

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: ubuntuone-client 1.5.3-0ubuntu3
ProcVersionSignature: Ubuntu 2.6.38-1.28-generic 2.6.38-rc2
Uname: Linux 2.6.38-1-generic i686
Architecture: i386
Date: Tue Feb 1 13:24:20 2011
ExecutablePath: /usr/lib/ubuntuone-client/ubuntuone-login
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/lib/ubuntuone-client/ubuntuone-login
ProcEnviron:
 SHELL=/bin/bash
 LC_MESSAGES=it_IT.utf8
 LANGUAGE=it_IT:it:en_GB:en
 LANG=it_IT.UTF-8
PythonArgs: ['/usr/lib/ubuntuone-client/ubuntuone-login']
SourcePackage: ubuntuone-client
Title: ubuntuone-login crashed with ValueError in call_async(): Unable to guess signature from an empty dict
UbuntuOneSyncdaemonExceptionsLog:

UbuntuOneUserSyncdaemonConfig:
 [bandwidth_throttling]
 read_limit = 2097152
 write_limit = 2097152
 on = False
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make Ubuntu better. This particular crash has already been reported and is a duplicate of bug #711162, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.