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After installing Ubuntu 12.04LTS, I receive the following error whenever I attempt to load the UbuntuOne client:

  Traceback (most recent call last):\n
    File "/usr/lib/python2.7/dist-packages/dbus/", line 707, in _message_cb\n
      retval = candidate_method(self, *args, **keywords)\n
    File "/usr/lib/python2.7/dist-packages/ubuntuone-client/ubuntuone/platform/credentials/", line 185, in find_credentials\n
      reply_handler=reply_handler, error_handler=error_handler)\n
    File "/usr/lib/python2.7/dist-packages/dbus/", line 137, in __call__\n
    File "/usr/lib/python2.7/dist-packages/dbus/", line 584, in call_async\n
      message.append(signature=signature, *args)\n
  ValueError: Unable to guess signature from an empty dict\n

Ubuntu One is not syncing data, and can't even start without crashing (giving the report copy&pasted above).

Does anybody have any ideas as to how I can remedy this?

Thank you!

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closed as off topic by Jjed, jokerdino, Christopher Kyle Horton, hbdgaf, fossfreedom Apr 29 '12 at 10:49

Questions on Ask Ubuntu are expected to relate to Ubuntu within the scope defined by the community. Consider editing the question or leaving comments for improvement if you believe the question can be reworded to fit within the scope. Read more about reopening questions here.If this question can be reworded to fit the rules in the help center, please edit the question.

This question should instead be filed as a bug report, and as such is off-topic, thanks! Instructions on filing a bug report are here. –  Jjed Apr 29 '12 at 3:11
This might be Bug #711162‌​. –  Christopher Kyle Horton Apr 29 '12 at 3:34
Yes, I found that bug and I'm concerned -- that bug is from 2011 and I guess it still isn't resolved? But it only happened immediately after I upgraded to Ubuntu 12.04. I've searched for hours and cannot figure or find a solution. Thanks for suggesting that bug, nonetheless... :-) –  Joe Seemiller Apr 29 '12 at 3:43

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