CredentialsError starting UbuntuOne for Ubuntu 12.04

The symptom is exactly that of
https://bugs.launchpad.net/ubuntuone-client/+bug/1014379

But

1. I'm not using nightlies repository, just normal precise-updates repository.
2. That bug is fixed, but I'm still having the problem.

Details.

Ubuntu 12.04, with normal precise-updates repository, minimum installation. So I need to install UbuntuOne myself.

apt-get install ubuntuone-control-panel
apt-get install ubuntuone-control-panel-qt

then start ubuntuone-control-panel-qt as me. An error message is shown when opening the control panel:

 CredentialsError DBusException(dbus.String(u'Process /usr/lib/ubuntuone-client/ubuntuone-login exited with status 1'),)

How can I setup the Credentials myself?
I can't seem to find Applications->Accessories->Passwords and Encryption Keys on my Ubuntu 12.04 PC.

If I run /usr/lib/ubuntuone-client/ubuntuone-login directly, the script produces the following error traceback.

$ /usr/lib/ubuntuone-client/ubuntuone-login
Traceback (most recent call last):
  File "/usr/lib/ubuntuone-client/ubuntuone-login", line 43, in <module>
    import glib
ImportError: No module named glib
Error in sys.excepthook:
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/apport_python_hook.py", line 128, in apport_excepthook
    os.O_WRONLY|os.O_CREAT|os.O_EXCL, 0o640), 'w')
OSError: [Errno 2] No such file or directory: '/var/crash/_usr_lib_ubuntuone-client_ubuntuone-login.9999.crash'

Original exception was:
Traceback (most recent call last):
  File "/usr/lib/ubuntuone-client/ubuntuone-login", line 43, in <module>
    import glib
ImportError: No module named glib

My current packages:

$ apt-cache policy ubuntuone-control-panel-qt
ubuntuone-control-panel-qt:
  Installed: 3.0.1-0ubuntu1
  Candidate: 3.0.1-0ubuntu1
  Version table:
 *** 3.0.1-0ubuntu1 0
        500 http://us.archive.ubuntu.com/ubuntu/ precise-updates/main amd64 Packages
        100 /var/lib/dpkg/status
     3.0.0-0ubuntu1 0
        500 http://us.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages

 python-ubuntuone-client_3.0.2-0ubuntu1
 python-ubuntuone-control-panel_3.0.1-0ubuntu1
 python-ubuntuone-storageprotocol_3.0.2-0ubuntu1
 ubuntuone-client_3.0.2-0ubuntu1
 ubuntuone-control-panel_3.0.1-0ubuntu1
 ubuntuone-control-panel-common_3.0.1-0ubuntu1
 ubuntuone-control-panel-qt_3.0.1-0ubuntu1
 ubuntuone-installer_3.0.2-0ubuntu1.1

Installation log:

% apt-get install ubuntuone-control-panel
The following extra packages will be installed:
  aspell aspell-en dbus-x11 dconf-gsettings-backend dconf-service
  dictionaries-common gir1.2-atk-1.0 gir1.2-freedesktop gir1.2-gdkpixbuf-2.0
  gir1.2-gtk-3.0 gir1.2-javascriptcoregtk-3.0 gir1.2-notify-0.7
  gir1.2-pango-1.0 gir1.2-soup-2.4 gir1.2-webkit-3.0 glib-networking
  glib-networking-common glib-networking-services gnome-keyring
  gsettings-desktop-schemas libaspell15 libcairo-gobject2 libcap2 libcap2-bin
  libdconf0 libenchant1c2a libgail-3-0 libgck-1-0 libgcr-3-1 libgcr-3-common
  libgeoclue0 libglib2.0-bin libglib2.0-data libgnome-keyring-common
  libgnome-keyring0 libgstreamer-plugins-base0.10-0 libgstreamer0.10-0
  libgtk-3-0 libgtk-3-common libhunspell-1.3-0 libicu48
  libjavascriptcoregtk-3.0-0 libnotify4 liborc-0.4-0 libprotobuf7 libproxy1
  libsoup-gnome2.4-1 libsoup2.4-1 libwebkitgtk-3.0-0 libwebkitgtk-3.0-common
  libxslt1.1 python-apport python-configglue python-dirspec python-httplib2
  python-keyring python-launchpadlib python-lazr.restfulclient python-lazr.uri
  python-oauth python-openssl python-pkg-resources python-problem-report
  python-protobuf python-pyinotify python-simplejson python-twisted-bin
  python-twisted-core python-twisted-names python-twisted-web
  python-ubuntu-sso-client python-ubuntuone-client
  python-ubuntuone-control-panel python-ubuntuone-storageprotocol
  python-wadllib python-xdg python-zope.interface ubuntu-sso-client
  ubuntuone-client
Suggested packages:
  aspell-doc spellutils ispell emacsen-common jed-extra libcap-dev
  libenchant-voikko geoclue libvisual-0.4-plugins gstreamer-codec-install
  gnome-codec-install gstreamer0.10-tools gstreamer0.10-plugins-base
  librsvg2-common gvfs python-testresources python-openssl-doc
  python-openssl-dbg python-distribute python-distribute-doc
  python-pyinotify-doc python-twisted-bin-dbg python-tk python-gtk2
  python-glade2 python-qt3 python-wxgtk2.8 ubuntuone-client-dbg
  ubuntuone-client-proxy ubuntuone-control-panel-gui
Recommended packages:
  libpam-gnome-keyring libpam-cap enchant hicolor-icon-theme libgtk-3-bin
  hunspell-en-us hunspell-dictionary myspell-dictionary notification-daemon
  python-crypto protobuf-compiler libjs-jquery python-pam python-serial
  zeitgeist-core ubuntu-sso-client-gtk ubuntu-sso-client-gui gir1.2-unity-5.0
  gir1.2-unity-4.0 gir1.2-unity-3.0 gir1.2-indicate-0.7 gir1.2-indicate-0.6
  ubuntuone-installer
The following NEW packages will be installed:
  aspell aspell-en dbus-x11 dconf-gsettings-backend dconf-service
  dictionaries-common gir1.2-atk-1.0 gir1.2-freedesktop gir1.2-gdkpixbuf-2.0
  gir1.2-gtk-3.0 gir1.2-javascriptcoregtk-3.0 gir1.2-notify-0.7
  gir1.2-pango-1.0 gir1.2-soup-2.4 gir1.2-webkit-3.0 glib-networking
  glib-networking-common glib-networking-services gnome-keyring
  gsettings-desktop-schemas libaspell15 libcairo-gobject2 libcap2 libcap2-bin
  libdconf0 libenchant1c2a libgail-3-0 libgck-1-0 libgcr-3-1 libgcr-3-common
  libgeoclue0 libglib2.0-bin libglib2.0-data libgnome-keyring-common
  libgnome-keyring0 libgstreamer-plugins-base0.10-0 libgstreamer0.10-0
  libgtk-3-0 libgtk-3-common libhunspell-1.3-0 libicu48
  libjavascriptcoregtk-3.0-0 libnotify4 liborc-0.4-0 libprotobuf7 libproxy1
  libsoup-gnome2.4-1 libsoup2.4-1 libwebkitgtk-3.0-0 libwebkitgtk-3.0-common
  libxslt1.1 python-apport python-configglue python-dirspec python-httplib2
  python-keyring python-launchpadlib python-lazr.restfulclient python-lazr.uri
  python-oauth python-openssl python-pkg-resources python-problem-report
  python-protobuf python-pyinotify python-simplejson python-twisted-bin
  python-twisted-core python-twisted-names python-twisted-web
  python-ubuntu-sso-client python-ubuntuone-client
  python-ubuntuone-control-panel python-ubuntuone-storageprotocol
  python-wadllib python-xdg python-zope.interface ubuntu-sso-client
  ubuntuone-client ubuntuone-control-panel
0 upgraded, 80 newly installed, 0 to remove and 0 not upgraded.
Need to get 29.2 MB of archives.
After this operation, 100.0 MB of additional disk space will be used.

% apt-get install ubuntuone-control-panel-qt
The following extra packages will be installed:
  aptdaemon-data gir1.2-vte-2.90 libaudio2 libcroco3 liblcms1 libmng1
  libpolkit-agent-1-0 libpolkit-backend-1-0 libpython2.7 libqt4-dbus
  libqt4-declarative libqt4-designer libqt4-help libqt4-network libqt4-script
  libqt4-scripttools libqt4-sql libqt4-svg libqt4-test libqt4-xml
  libqt4-xmlpatterns libqtassistantclient4 libqtcore4 libqtgui4 libqtwebkit4
  librsvg2-2 librsvg2-common libvte-2.90-9 libvte-2.90-common policykit-1
  python-aptdaemon python-aptdaemon.gtk3widgets python-chardet python-debian
  python-defer python-imaging python-pycurl python-qt4 python-qt4-dbus
  python-sip python-software-properties ubuntu-sso-client-qt
  ubuntuone-control-panel-common ubuntuone-installer unattended-upgrades
Suggested packages:
  nas liblcms-utils libqt4-declarative-folderlistmodel
  libqt4-declarative-gestures libqt4-declarative-particles
  libqt4-declarative-shaders qt4-qmlviewer libqt4-dev qt4-qtconfig
  librsvg2-bin python-imaging-doc python-imaging-dbg libcurl4-gnutls-dev
  python-pycurl-dbg python-qt4-dbg bsd-mailx
Recommended packages:
  qdbus libqt4-sql-mysql libqt4-sql-odbc libqt4-sql-psql libqt4-sql-sqlite
  aptdaemon indicator-messages
The following NEW packages will be installed:
  aptdaemon-data gir1.2-vte-2.90 libaudio2 libcroco3 liblcms1 libmng1
  libpolkit-agent-1-0 libpolkit-backend-1-0 libpython2.7 libqt4-dbus
  libqt4-declarative libqt4-designer libqt4-help libqt4-network libqt4-script
  libqt4-scripttools libqt4-sql libqt4-svg libqt4-test libqt4-xml
  libqt4-xmlpatterns libqtassistantclient4 libqtcore4 libqtgui4 libqtwebkit4
  librsvg2-2 librsvg2-common libvte-2.90-9 libvte-2.90-common policykit-1
  python-aptdaemon python-aptdaemon.gtk3widgets python-chardet python-debian
  python-defer python-imaging python-pycurl python-qt4 python-qt4-dbus
  python-sip python-software-properties ubuntu-sso-client-qt
  ubuntuone-control-panel-common ubuntuone-control-panel-qt
  ubuntuone-installer unattended-upgrades
0 upgraded, 46 newly installed, 0 to remove and 0 not upgraded.
Need to get 28.0 MB of archives.
After this operation, 111 MB of additional disk space will be used.

Thanks