does not upgrade correctly

[miked]

Binary package hint: deskbar-applet

root@LeftGuest:~# lsb_release -rd
Description: Ubuntu maverick (development branch)
Release: 10.10
root@LeftGuest:~# sudo apt-get dist-upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following NEW packages will be installed:
  libprotoc6 libyaz4 tracker-extract tracker-gui tracker-miner-evolution tracker-miner-fs ubuntu-restricted-addons
  xul-ext-ubufox
The following packages will be upgraded:
  cdrdao dcraw deskbar-applet evolution-indicator fancontrol gnome-pilot-conduits libauthen-sasl-perl lm-sensors mesa-utils
  protobuf-compiler python-compizconfig python-gdata rhythmbox-ubuntuone-music-store thunderbird thunderbird-locale-en-gb
  tomboy totem totem-common totem-dbg totem-gstreamer totem-mozilla totem-plugins totem-xine tracker tracker-search-tool
  transmission-common transmission-gtk tsclient ttf-dejavu-extra ttf-indic-fonts-core ttf-kacst ttf-kochi-gothic
  ttf-kochi-mincho ttf-malayalam-fonts ttf-punjabi-fonts ttf-thai-tlwg ttf-unfonts-core ttf-vlgothic ttf-wqy-zenhei ubufox
  ubuntu-restricted-extras unrar usb-creator-common usb-creator-gtk valgrind vinagre vino wdiff wine wodim wvdial xsane
  xsane-common xutils xutils-dev yaz
56 upgraded, 8 newly installed, 0 to remove and 0 not upgraded.
Need to get 0B/86.4MB of archives.
After this operation, 4,153kB disk space will be freed.
Do you want to continue [Y/n]? y
Extracting templates from packages: 100%
Preconfiguring packages ...
(Reading database ... 548122 files and directories currently installed.)
Preparing to replace deskbar-applet 2.30.0-0ubuntu1 (using .../deskbar-applet_2.30.1-1ubuntu1_i386.deb) ...
Unpacking replacement deskbar-applet ...
dpkg: error processing /var/cache/apt/archives/deskbar-applet_2.30.1-1ubuntu1_i386.deb (--unpack):
 trying to overwrite directory '/usr/lib/deskbar-applet/deskbar-applet' in package libdeskbar-tracker 0.6.95-1ubuntu6 with nondirectory
dpkg-deb: subprocess paste killed by signal (Broken pipe)
Processing triggers for python-support ...
Errors were encountered while processing:
 /var/cache/apt/archives/deskbar-applet_2.30.1-1ubuntu1_i386.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
root@LeftGuest:~#

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: deskbar-applet 2.30.0-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.35-22.33-generic 2.6.35.4
Uname: Linux 2.6.35-22-generic i686
Architecture: i386
Date: Tue Sep 21 01:16:07 2010
ProcEnviron:
 LANG=en_US.utf8
 SHELL=/bin/bash
SourcePackage: deskbar-applet