On Wed, 17 Jul 2013 20:02:04 Roel Wagenaar wrote:
> Roel Wagenaar <roel@...> wrote:
> > L.S.
> >
> > When updateing debian wheezy on amd64 with apt-get or aptitude I get this
> > error:
> >
> > GPG-error: http://ppa.quickbuild.pearsoncomputing.net wheezy Release: The
> > next signatures were invalid: BADSIG 43F1DC4F2B8638D0 QuickBuild Trinity
> > Desktop Environment.
> >
> > Ophalen van
>
> bzip2:/var/lib/apt/lists/partial/ppa.quickbuild.pearsoncomputing.net_trinit
>y_trinity-builddeps-v3.5.13_debian_dists_wheezy_main_binary-amd64_Packages
>
> > has failed Hash-sum does not match.
> >
> > Is this a matter of time and patience or a real error?
>
> This matter is persistent over the past fortnight, anyone have a solution?

Random guess but maybe the file got damaged during the upgrade process and 
further attempts are not overwriting it. With a sucessful  load from scratch 
that file is in /var/lib/apt/lists/ after completion.
Try moving the file to /tmp and redo the upgrade.

John Campbell