ubuntuone DBusException Failed to create necessary plain keys.

[sunweb]

Upgraded to Ubuntu 12.04, everything worked.
Wanted to change account name, somewhere read that reinstalling ubuntuone helped. After removing and installing ubuntuone again Ubuntu One control panels won't start.

>> controlpanel.log

2012-04-15 20:53:27,503 - ubuntuone.controlpanel.backend - INFO - ControlBackend: instance started.
2012-04-15 20:53:27,723 - ubuntuone.controlpanel.qt.gui - INFO - Updates available? None
2012-04-15 20:53:28,189 - ubuntuone.controlpanel.qt.controlpanel - ERROR - Error while invoking <bound method ControlPanel.load of <ubuntuone.controlpanel.gui.qt.controlpanel.ControlPanel object at 0x30f80e0>> with args () and kwargs {}:
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/ubuntuone-control-panel/ubuntuone/controlpanel/gui/qt/__init__.py", line 100, in inner
    res = yield f(*args, **kwargs)
CredentialsError: dbus.Dictionary({dbus.String(u'errtype'): dbus.String(u'DBusException'), dbus.String(u'message'): dbus.String(u'Failed to create necessary plain keys.')}, signature=dbus.Signature('ss'))
2012-04-15 20:55:02,535 - ubuntuone.controlpanel.qt.controlpanel - INFO - The warning dialog was shown and also closed (message was u'DBusException\nFailed to create necessary plain keys.').

>> credentials.log

2012-04-15 20:53:27,773 - ubuntuone.credentials - DEBUG - find_credentials: args (<ubuntuone.platform.credentials.CredentialsManagementTool object at 0x30ebad0>,), kwargs {}.
2012-04-15 20:53:28,013 - ubuntuone.credentials - INFO - Starting Ubuntu One login manager for bus u'com.ubuntuone.Credentials'.
2012-04-15 20:53:28,018 - ubuntuone.credentials - DEBUG - ref_count is 0, changing value to 1.
2012-04-15 20:53:28,185 - ubuntuone.credentials - DEBUG - Handling DBus signal for member: u'CredentialsError', app_name: dbus.String(u'Ubuntu One').
2012-04-15 20:53:28,185 - ubuntuone.credentials - INFO - u'CredentialsError'
2012-04-15 20:53:28,186 - ubuntuone.credentials - DEBUG - ref_count is 1, changing value to 0.
2012-04-15 20:53:28,186 - ubuntuone.credentials - DEBUG - Setting up timer with <built-in function timeout_add> (10000, <bound method CredentialsManagement.shutdown of <ubuntuone.platform.credentials.linux.CredentialsManagement at /credentials at 0x2e78f90>>).
2012-04-15 20:53:28,186 - ubuntuone.credentials - ERROR - CredentialsManagement: emitting CredentialsError with error_dict dbus.Dictionary({dbus.String(u'errtype'): dbus.String(u'DBusException'), dbus.String(u'message'): dbus.String(u'Failed to create necessary plain keys.')}, signature=dbus.Signature('ss')).
2012-04-15 20:53:28,187 - ubuntuone.credentials - DEBUG - cleanup: removing signal match <<class 'dbus.connection.SignalMatch'> at 2e8fe90 "type='signal',sender='com.ubuntuone.Credentials',path='/credentials',interface='com.ubuntuone.CredentialsManagement',member='CredentialsFound'" on conn <dbus._dbus.SessionBus (session) at 0x2fece30>>
2012-04-15 20:53:28,188 - ubuntuone.credentials - DEBUG - cleanup: removing signal match <<class 'dbus.connection.SignalMatch'> at 385d050 "type='signal',sender='com.ubuntuone.Credentials',path='/credentials',interface='com.ubuntuone.CredentialsManagement',member='CredentialsNotFound'" on conn <dbus._dbus.SessionBus (session) at 0x2fece30>>
2012-04-15 20:53:28,189 - ubuntuone.credentials - DEBUG - cleanup: removing signal match <<class 'dbus.connection.SignalMatch'> at 385d1d0 "type='signal',sender='com.ubuntuone.Credentials',path='/credentials',interface='com.ubuntuone.CredentialsManagement',member='CredentialsError'" on conn <dbus._dbus.SessionBus (session) at 0x2fece30>>
2012-04-15 20:53:38,197 - ubuntuone.credentials - DEBUG - shutdown!, ref_count is 0.
2012-04-15 20:53:38,197 - ubuntuone.credentials - INFO - Shutting down, calling <built-in method quit of glib.MainLoop object at 0x7f8611ba6f90>.

[Leo Arias (elopio)]

Can you please tell us what steps did you follow to remove and reinstall u1?

[sunweb (sunweb-a)]

sudo apt-get remove --purge ubuntuone*
then through nautilus cleaned up everything related to ubuntuone and ubuntuone sso.
then installed again

[sunweb (sunweb-a)]

Ok thats funny, i've repeated the process on clean installed 12.04 in virtual box and everyhing works. Mine is upgraded from 11.10

[Tony Mugan (tmugan)]

I have a similar problem here but did not actually try to reinstall ubuntuone until after I had problems with it.

https://bugs.launchpad.net/ubuntu/+source/ubuntuone-client/+bug/983756

The reinstall did not work for me.

[sunweb (sunweb-a)]

Ok, i have found something that worked for me !

I've added ppa from GNOME guys ppa:gnome3-team/gnome3 upgraded and everything works.

Note: reinstalling gnome-keyring from ubuntu repositories didn't work, i tried it and alot of different things to do.

P.S. seahorse now look far more logical than it did, now i can actually see what keys are stored there and not just "login, 1,2,3,...7" names that mean nothing to the end user.

[sunweb (sunweb-a)]

Also i've found the way to change my name as well.
It worked if name is changed from this site https://one.ubuntu.com/ , i don't why but it didn't work for me when i was trying to change from this page directly https://login.ubuntu.com/