APT Help

["Dean Chester" <dean.g.chester@googlemail.com>]

Hi 
When ever i try to update my SID box i keep getting these errors and it doesn't update does anyone know  how i can fix it? Here is the out put in the console:
Extracting templates from packages: 100%
Preconfiguring packages ...
(Reading database ... 267846 files and directories currently installed.)
Removing libghc6-highlighting-kate-dev ...
ghc-pkg: cannot find package highlighting-kate-0.2.1
dpkg: error processing libghc6-highlighting-kate-dev (--remove):
 subprocess pre-removal script returned error exit status 1
Reading package info from "/usr/lib/haskell-packages/ghc6/lib/highlighting-kate-0.2.1/installed-pkg-config" ... done.
ghc-pkg: dependency parsec-2.1.0.0 doesn't exist (use --force to override)
dpkg: error while cleaning up:
 subprocess post-installation script returned error exit status 1
Errors were encountered while processing:
 libghc6-highlighting-kate-dev
E: Sub-process /usr/bin/dpkg returned an error code (1)
A package failed to install.  Trying to recover:
Press return to continue.

Dean