package libmono-system-runtime2.0-cil (not installed) failed to install/upgrade:

Thank you for taking the time to report this bug and helping to make Ubuntu better. Please answer these questions:
1. Is this reproducible?
2. If so, what specific steps should we take to recreate this bug? Be as detailed as possible.
This will help us to find and resolve the problem.

It had been quite some time since I updated my OS as the box is headless and
I usually only see the terminal window and never the icons saying there are
updates. There were quite a few updates as you can guess and I clicked the
button to do them all, then I restarted the system as directed. When it came
back up it said that there was an upgrade to the OS available so I clicked
the button to do the upgrade. After some time it began to give errors the
first of which was:

Could not instal l'swfdec-mozilla' The upgrade will continue but the
'swfdec-mozilla' package may not be in a working state. Please consider
submitting a bug report about it. Subprocess installed pre-removal script
returned error exit status 2

This was the first of many such messages, all were similar except for the
package name.

Hope this helps

-----Original Message-----
From: <email address hidden> [mailto:<email address hidden>] On Behalf Of
Nitesh Mistry
Sent: Friday, October 29, 2010 02:07
To: <email address hidden>
Subject: [Bug 668154] Re: package libmono-system-runtime2.0-cil
(notinstalled) failed to install/upgrade:

Thank you for taking the time to report this bug and helping to make Ubuntu
better. Please answer these questions:
1. Is this reproducible?
2. If so, what specific steps should we take to recreate this bug? Be as
detailed as possible.
This will help us to find and resolve the problem.

** Package changed: ubuntu => mono (Ubuntu)

** Changed in: mono (Ubuntu)
       Status: New => Incomplete

--
package libmono-system-runtime2.0-cil (not installed) failed to
install/upgrade:
https://bugs.launchpad.net/bugs/668154
You received this bug notification because you are a direct subscriber of
the bug.

Status in "mono" package in Ubuntu: Incomplete

Bug description:
upgrade

ProblemType: Package
DistroRelease: Ubuntu 10.04
Package: libmono-system-runtime2.0-cil (not installed)
ProcVersionSignature: Ubuntu 2.6.32-25.45-generic 2.6.32.21+drm33.7
Uname: Linux 2.6.32-25-generic i686
Architecture: i386
Date: Thu Oct 28 13:14:42 2010
ErrorMessage:
 ErrorMessage: subprocess installed pre-removal script returned error exit
status 2
SourcePackage: mono
Title: package libmono-system-runtime2.0-cil (not installed) failed to
install/upgrade:

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https://bugs.launchpad.net/ubuntu/+source/mono/+bug/668154/+subscribe

The error is
Removing swfdec-mozilla ...

update-alternatives: error: no alternatives for iceape-flashplugin.

update-alternatives: error: no alternatives for iceape-flashplugin.

dpkg: error processing swfdec-mozilla (--remove):

 subprocess installed pre-removal script returned error exit status 2

postinst called with argument `abort-remove'

dpkg: error while cleaning up:

 subprocess installed post-installation script returned error exit status 1

affecting to gnash