problema con apt-get

[spite <spite@swissinfo.org>]

ho settato tutto come testing ma da qulache giorno ho questo problema:

ora ogni volta che uso apt-get mi si presenta questa situazione

$:: apt-get -u dist-upgrade
Reading Package Lists... Done
Building Dependency Tree... Done
You might want to run `apt-get -f install' to correct these.
Sorry, but the following packages have unmet dependencies:
  kdelibs4: Depends: kdelibs-data (= 4:3.1.4-2) but 4:3.1.2-2.1 is installed
W: Couldn't stat source package list file: debs/ Packages (/var/lib/apt/lists/_root_debs_Packages) - stat (2 No such file or directory)
W: You may want to run apt-get update to correct these problems
E: Unmet dependencies. Try using -f.

faccio quello che suggerisce ma non risolvo

$:: apt-get -f install
Reading Package Lists... Done
Building Dependency Tree... Done
Correcting dependencies... Done
The following extra packages will be installed:
  kdelibs-data
1 packages upgraded, 0 newly installed, 0 to remove and 663  not upgraded.
10 packages not fully installed or removed.
Need to get 0B/5066kB of archives. After unpacking 16.4kB will be used.
Do you want to continue? [Y/n]
Reading package fields... Done
Reading package status.. Done
Retrieving bug reports... 0% [0/1] ... E: 302 "Found"
W: Couldn't stat source package list file: debs/ Packages (/var/lib/apt/lists/_root_debs_Packages) - stat (2 No such file or directory)
(Reading database ... 123487 files and directories currently installed.)
Preparing to replace kdelibs-data 4:3.1.2-2.1 (using .../kdelibs-data_4%3a3.1.4-2_all.deb) ...
Unpacking replacement kdelibs-data ...
dpkg: error processing /var/cache/apt/archives/kdelibs-data_4%3a3.1.4-2_all.deb (--unpack):
 trying to overwrite `/usr/share/mimelnk/application/x-cue.desktop', which is also in package k3b
dpkg-deb: subprocess paste killed by signal (Broken pipe)
Errors were encountered while processing:
 /var/cache/apt/archives/kdelibs-data_4%3a3.1.4-2_all.deb
W: Couldn't stat source package list file: debs/ Packages (/var/lib/apt/lists/_root_debs_Packages) - stat (2 No such file or directory)
W: You may want to run apt-get update to correct these problems
E: Sub-process /usr/bin/dpkg returned an error code (1)

Chi mi sa dare una dritta perchè non riesco ad uscirne

ciao