package dependency problems when using aptitude

[matt]

after a fresh kubuntu install from live-dvd on an amd64 system, I installed aptitude and tried to install the task categories "ubuntu-minimal", "ubuntu-standard", and "kubuntu-desktop", just to make shure all dependencies are installed properly.
aptitude then leaves me with broken dependencies, proposing to remove half of my already installed desktop environment and removing AND installing "command-not-found-data" in the same run...?

when checking the sources.list (which was still in default state, no user defined sources yet), I noticed that the backports repository was enabled by default on a fresh install. don't know if this caused the problem, but afaik a default install shouldn't include sources for unsupported updates by community.

I changed all my sources to defaults, but non of the distributed updates fixed my dependency problems so far...

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: command-not-found-data (not installed)
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic x86_64
ApportVersion: 1.23-0ubuntu3
Architecture: amd64
Date: Mon Oct 24 11:28:51 2011
EcryptfsInUse: Yes
InstallationMedia: Kubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
ProcEnviron:
 LANGUAGE=
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: command-not-found
UpgradeStatus: No upgrade log present (probably fresh install)

[Rolf Leggewie (r0lf)]

closing as obsolete, sorry we couldn't deal with your report in a better manner