package awn-applets-c-core 0.4.0-0ubuntu1 failed to install/upgrade: trying to overwrite '/usr/share/avant-window-navigator/applets/awnsystemmonitor.desktop', which is also in package awn-applets-c-extras 0.4.0-0ubuntu1

[ginnyh532]

Here is the error message I got when I tried to upgrade awn-applets-c-core and awn-applets-c-extras. I am using Maverick.

E: /var/cache/apt/archives/awn-applets-c-core_0.4.0+bzr1372-0ubuntu1_i386.deb: trying to overwrite '/usr/share/avant-window-navigator/applets/awnsystemmonitor.desktop', which is also in package awn-applets-c-extras 0.4.0-0ubuntu1
E: /var/cache/apt/archives/awn-applets-c-extras_0.4.0+bzr1372-0ubuntu1_i386.deb: trying to overwrite '/usr/lib/awn/applets/places/places.so', which is also in package awn-applets-c-core 0.4.0-0ubuntu1

W: Ignoring file 'ailurus-ailurus-experiment-maverick.list.save' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension

ProblemType: Package
DistroRelease: Ubuntu 10.10
Package: awn-applets-c-core 0.4.0-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.35-19.28-generic 2.6.35.3
Uname: Linux 2.6.35-19-generic i686
NonfreeKernelModules: nvidia
Architecture: i386
Date: Wed Sep 1 00:47:08 2010
ErrorMessage: trying to overwrite '/usr/share/avant-window-navigator/applets/awnsystemmonitor.desktop', which is also in package awn-applets-c-extras 0.4.0-0ubuntu1
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Alpha i386 (20100825)
SourcePackage: awn-extras-applets
Title: package awn-applets-c-core 0.4.0-0ubuntu1 failed to install/upgrade: trying to overwrite '/usr/share/avant-window-navigator/applets/awnsystemmonitor.desktop', which is also in package awn-applets-c-extras 0.4.0-0ubuntu1