[Jaunty] update-manager crashes trying to enable apport

Binary package hint: update-manager

Starts up telling it can only do a partial upgrade -- with just a few packages to remove/upgrade. Prevents upgrading using the manager (apt still works, but upgrading manually doesn't help) also no automatic bug report in this case. Running through the application menu doesn't even give any hint something went wrong.

a@aaa:~$ update-manager
/var/lib/python-support/python2.6/dbus/connection.py:242: DeprecationWarning: object.__init__() takes no parameters
  super(Connection, self).__init__(*args, **kwargs)
ERROR:root:not handled expection:
Traceback (most recent call last):

  File "/usr/bin/update-manager", line 100, in <module>
    controler.doPartialUpgrade()

  File "/usr/lib/python2.6/dist-packages/DistUpgrade/DistUpgradeController.py", line 1590, in doPartialUpgrade
    if not self.doDistUpgrade():

  File "/usr/lib/python2.6/dist-packages/DistUpgrade/DistUpgradeController.py", line 965, in doDistUpgrade
    self.enableApport()

  File "/usr/lib/python2.6/dist-packages/DistUpgrade/DistUpgradeController.py", line 959, in enableApport
    shutil.copy("etc-default-apport","/etc/default/apport")

  File "/usr/lib/python2.6/shutil.py", line 88, in copy
    copyfile(src, dst)

  File "/usr/lib/python2.6/shutil.py", line 52, in copyfile
    fsrc = open(src, 'rb')

IOError: [Errno 2] No such file or directory: 'etc-default-apport'

ERROR:root:failed to import apport python module, can't report bug: No module named python_hook
none

a@aaa:~$ cat /etc/default/apport
# set this to 0 to disable apport, or to 1 to enable it
# you can temporarily override this with
# sudo force_start=1 /etc/init.d/apport start
enabled=1

# set maximum core dump file size (default: 209715200 bytes == 200 MB)
maxsize=209715200

Jaunty beta.
Linux aaa 2.6.28-11-generic #41-Ubuntu SMP Wed Apr 8 04:39:23 UTC 2009 x86_64 GNU/Linux
update-manager 1:0.111.3
python-apport 1.0-0ubuntu2