package kdeartwork-theme-icon 4:4.1.2-0ubuntu1 failed to install/upgrade: trying to overwrite `/usr/share/icons/nuvola/index.theme', which is also in package kde-icons-nuvola

Binary package hint: kdeartwork

I recently upgraded my system from Hardy to the Intrepid beta. This error appeared when I was running an update/upgrade:

Preparing to replace kdeartwork-theme-icon 4:3.5.10-0ubuntu1~hardy1 (using .../kdeartwork-theme-icon_4%3a4.1.2-0ubuntu1_all.deb) ...
Unpacking replacement kdeartwork-theme-icon ...
dpkg: error processing /var/cache/apt/archives/kdeartwork-theme-icon_4%3a4.1.2-0ubuntu1_all.deb (--unpack):
 trying to overwrite `/usr/share/icons/nuvola/index.theme', which is also in package kde-icons-nuvola
dpkg-deb: subprocess paste killed by signal (Broken pipe)
Errors were encountered while processing:
 /var/cache/apt/archives/kdeartwork-theme-icon_4%3a4.1.2-0ubuntu1_all.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

It looks like the new kdeartwork-theme-icon package was trying to replace a file belonging to kde-icons-nuvola.

I resolved the package conflict by removing the kde-icons-nuvola package, but this shouldn't have been necessary.

package version information:

$ apt-cache policy packagename kdeartwork-theme-icon
kdeartwork-theme-icon:
  Installed: 4:4.1.2-0ubuntu1
  Candidate: 4:4.1.2-0ubuntu1
  Version table:
 *** 4:4.1.2-0ubuntu1 0
        500 http://us.archive.ubuntu.com intrepid/main Packages
        500 http://archive.ubuntu.com intrepid/main Packages
        100 /var/lib/dpkg/status
W: Unable to locate package packagename

~$ apt-cache policy packagename kde-icons-nuvola
kde-icons-nuvola:
  Installed: (none)
  Candidate: 1.0.final-2ubuntu2
  Version table:
     1.0.final-2ubuntu2 0
        500 http://us.archive.ubuntu.com intrepid/universe Packages
        500 http://archive.ubuntu.com intrepid/universe Packages
W: Unable to locate package packagename

ProblemType: Package
Architecture: i386
Dependencies:

DistroRelease: Ubuntu 8.10
ErrorMessage: trying to overwrite `/usr/share/icons/nuvola/index.theme', which is also in package kde-icons-nuvola
Package: kdeartwork-theme-icon 4:4.1.2-0ubuntu1
PackageArchitecture: all
SourcePackage: kdeartwork
Title: package kdeartwork-theme-icon 4:4.1.2-0ubuntu1 failed to install/upgrade: trying to overwrite `/usr/share/icons/nuvola/index.theme', which is also in package kde-icons-nuvola
Uname: Linux 2.6.27-4-generic i686