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Ubuntu 12.04 can't install Firefox 13 update, because the package is corrupted. While attempting to install, returns this error (I translated it from my language to English).

    W: Waited for dpkg --assert-multi-arch but was not there - dpkgGo (10: There are no "child" processes).

I can tell that the package at /var/cache/apt/archives/firefox_13.0+build1-0ubuntu0.12.04.1_i386.deb is corrupted, but even as admin, I can't delete it in order to be downloaded again.

How should I proceed?

EDIT: There was a single package causing this conflict, please report here to understand all the situation: Why can't I install from software center?

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up vote 1 down vote accepted

Try removing firefox in the Software Center then reinstall.

Or open a terminal and run:

sudo apt-get remove firefox

This will also uninstall firefox and its packages then you can reinstall.

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It could be, but I would like to keep all my bookmarks, themes and add-ons and if I remove it I will lose all that and have to reinstall again... – Neptunno Jun 11 '12 at 18:28
no you won't. As long as you keep your .Mozilla folder in your /home then your preferences and bookmarks will be saved. – leousa Jun 11 '12 at 18:44
Hum, I didn't know... I'll give it a try – Neptunno Jun 11 '12 at 19:07
You're right @leousa it keeps everything as long as the .Mozilla folder is present at home directory. – Neptunno Jun 11 '12 at 22:24

You could download and install Synaptic Package Manager from Software Center. It can install or remove individual packages--you would need to find the name of the package and just search for it.

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