Mark, try the Answer on this page. I personally seem to remember removing
the lock file in the past:
http://askubuntu.com/questions/125841/upgrade-error-due-to-another-package-management-application-running
-peter

On Tue, Jun 5, 2012 at 4:14 PM, Mark Wallace <[email protected]> wrote:

> Another application seems to be using the package system at this time.
> You must close all other package managers before you will be able to
> install or remove any packages.
>
> Muon hung doing an upgrade and, after about an hour, I crashed the
> system.  Now I am getting this message.  It is Kubuntu 12.  I am not
> aware of any package managers open.  How do I fix this?
>
> Mark
>
> --
> Robert Mark Wallace
> 18 N Franklin Street
> Athens, NY 12015
> (845) 541-7396
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Upcoming Meetings (6pm - 8pm)                         Vassar College
  Jun 6 - Why the Web Needs HTML5
  Jul 11 - Mad Science Fair - Open Hardware Expo
  Aug 1 - Pimp My Network

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