Missing dependency python-httplib2

same issue here,-
It would be nice if the terminal error could have said, fix this by

sudo apt-get install python-httplib2

assuming this will in fact cure all

The errors continue

I installed python-httplib2

Due to ubuntu one not being under Applications --> Internet
I went back to teminal btw it is under System --> Preferences

user@ubuntu:~$ ubuntuone-preferences
ERROR:dbus.proxies:Introspect error on com.ubuntuone.Authentication:/: dbus.exceptions.DBusException: org.freedesktop.DBus.Error.Spawn.ChildExited: Launch helper exited with unknown return code 1

I tried it with Sudo and did not create a keyring password when prompted.

user@ubuntu:~$ sudo ubuntuone-preferences
ERROR:dbus.connection:Exception in handler for D-Bus signal:
Traceback (most recent call last):
  File "/var/lib/python-support/python2.6/dbus/connection.py", line 214, in maybe_handle_message
    self._handler(*args, **kwargs)
  File "/usr/bin/ubuntuone-preferences", line 533, in got_newcredentials
    dialog.request_quota_info()
  File "/usr/bin/ubuntuone-preferences", line 275, in request_quota_info
    'GET')
  File "/usr/bin/ubuntuone-preferences", line 254, in request_REST_info
    'oauth-consumer-key': consumer.key})
NoKeyringDaemonError
ERROR:dbus.proxies:Introspect error on com.ubuntuone.SyncDaemon:/config: dbus.exceptions.DBusException: org.freedesktop.DBus.Error.Spawn.ChildExited: Launch helper exited with unknown return code 1
<twisted.python.failure.Failure <class 'dbus.exceptions.DBusException'>>
DBusException(dbus.String(u'Launch helper exited with unknown return code 1'),)
DBusException(dbus.String(u'Launch helper exited with unknown return code 1'),)

I tried it and created a keyring password. Both sudo times it asked me to add my computer.

sudo ubuntuone-preferences
ERROR:dbus.connection:Exception in handler for D-Bus signal:
Traceback (most recent call last):
  File "/var/lib/python-support/python2.6/dbus/connection.py", line 214, in maybe_handle_message
    self._handler(*args, **kwargs)
  File "/usr/bin/ubuntuone-preferences", line 533, in got_newcredentials
    dialog.request_quota_info()
  File "/usr/bin/ubuntuone-preferences", line 275, in request_quota_info
    'GET')
  File "/usr/bin/ubuntuone-preferences", line 254, in request_REST_info
    'oauth-consumer-key': consumer.key})
NoKeyringDaemonError
ERROR:dbus.proxies:Introspect error on com.ubuntuone.SyncDaemon:/config: dbus.exceptions.DBusException: org.freedesktop.DBus.Error.Spawn.ChildExited: Launch helper exited with unknown return code 1
<twisted.python.failure.Failure <class 'dbus.exceptions.DBusException'>>
DBusException(dbus.String(u'Launch helper exited with unknown return code 1'),)
DBusException(dbus.String(u'Launch helper exited with unknown return code 1'),)

When I tried to lauch from its menu location all I get is the "ubuntu one error" dialog box, blank no content.

I am using a Dell 2400 with 1GB ram. ubuntu 9.04 with current updates.

Hi tommynz1975, and thank you for using Ubuntu One. Sorry you're having trouble with it.
Please do this:In a terminal, enter

/usr/lib/ubuntuone-client/ubuntuone-syncdaemon --debug

and tell us what it says.

Thanks,

This bug was fixed in the package ubuntuone-client - 1.1.90-0ubuntu1

---------------
ubuntuone-client (1.1.90-0ubuntu1) lucid; urgency=low

  * New upstream release.
    - Notify user when approaching and exceeding quota (LP: #540360)
    - Add instructional text to ubuntuone-preferences (LP: #539676)
    - UbuntuOne needs to autostart and connect by defualt (LP: #534707)
    - Impossible to infer status of file synchronization (LP: #526084)
    - Devices and Services tabs functionality and development (LP: #525803)
  * Add debian/source/format.
  * Remove python-httplib2 from the dependencies (LP: #535207)
 -- Rodney Dawes <email address hidden> Wed, 31 Mar 2010 19:47:01 -0400