Comment 114 for bug 659438

Matt; Thanks for your response of June 17th.Have resolved this problem
by reinstalling 10.10 Ubuntu,and then reupgrading back up to
11.04.(Chose "Ubuntu-Classic",at login.)Other part of solution was to
download and install Compiz-Prefs.-Manager.(This enabled a deselection
of the Unity-desktop,in Ubuntu 11.04.Everything seems to work fine
now,since a month or so.)Note: this may only be a solution for newbies
like me,who don't really know command-line fixits!(Even at that,this
fix doesn't work upon a reinstall of Ubuntu 11.04....it seems you have
to reinstall from 10.10,or earlier for this to work via GUI only.Why?
Because you'll be unable to choose the "Ubuntu-Classic-Deskstop"
option,at login.(Without command-line hammering and mods.,of
course.)So,if you're a newbie,you can try this.But even at that,I
can't say for certain,how I got it to work-wish there were
night-school courses in Ubu! Sincerly, John.

On 6/17/11, Matt Moore <email address hidden> wrote:
> This seems to be causing problems all over my new install?
>
> --
> You received this bug notification because you are subscribed to a
> duplicate bug report (764335).
> https://bugs.launchpad.net/bugs/659438
>
> Title:
> Installation/Removal fails because of package which could not be
> located (failure in apt.Cache.required_download)
>
> Status in Aptdaemon:
> In Progress
> Status in “apt” package in Ubuntu:
> Triaged
> Status in “aptdaemon” package in Ubuntu:
> In Progress
> Status in “python-apt” package in Ubuntu:
> Invalid
> Status in “apt” source package in Maverick:
> New
> Status in “aptdaemon” source package in Maverick:
> In Progress
> Status in “python-apt” source package in Maverick:
> Invalid
>
> Bug description:
> Steps to reproduce:
>
> 1. Run apt-get nstall ms-ttcorefonts-installer in a terminal
> 2. Close the terminal window at the EULA question (apt-get/dpkg/debconf)
> will sting hang in the background and lock the system)
> 3. Reboot
>
>
> Traceback (most recent call last):
>   File "/usr/lib/python2.6/dist-packages/aptdaemon/worker.py", line 768,
> in simulate
>     return self._simulate_helper(trans, status_path)
>   File "/usr/lib/python2.6/dist-packages/aptdaemon/worker.py", line 936,
> in _simulate_helper
>     return depends, status, self._cache.required_download, \
>   File "/usr/lib/python2.6/dist-packages/apt/cache.py", line 218, in
> required_download
>     pm.get_archives(fetcher, self._list, self._records)
> SystemError: E:I wasn't able to locate file for the liblua50 package. This
> might mean you need to manually fix this package.
>
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>