Cannot upgradeUbuntu software

[ndomama Dec.Kelly Gallant]

I aam trying to upgrade from Ubuntu 11.10 to 12.04. When I run the update manager, I get an error stating that Ubuntu cannot calculate the upgrade. The details say I need to add an update to Firefox, but when I go into the update manager and click 'check' the same 'cannot calculate upgrade' error pops up. Can anyone help me get around this so I can upgrade?

Thanks a million!

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: update-manager 1:0.152.25.5
ProcVersionSignature: Ubuntu 3.0.0-13.22-generic-pae 3.0.6
Uname: Linux 3.0.0-13-generic-pae i686
ApportVersion: 1.23-0ubuntu4
Architecture: i386
Date: Sun Aug 26 18:23:32 2012
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_CA.UTF-8
 SHELL=/bin/bash
SourcePackage: update-manager
UpgradeStatus: Upgraded to oneiric on 2012-08-26 (0 days ago)

[Jean-Baptiste Lallement (jibel)]

The upgrade is blocked by an old version of flash plugin from jaunty. This is a valid upgrade bug.

[Jean-Baptiste Lallement (jibel)]

Investigating (9) firefox [ i386 ] < 8.0+build1-0ubuntu0.11.10.3 -> 14.0.1+build1-0ubuntu0.12.04.3 > ( web )
Broken firefox:i386 Breaks on adobe-flashplugin [ i386 ] < 10.0.32.18-1jaunty1 -> 11.2.202.238-0precise1 > ( web ) (<= 11.1.102.63-0precise1)
  Considering adobe-flashplugin:i386 1 as a solution to firefox:i386 16
  Upgrading adobe-flashplugin:i386 due to Breaks field in firefox:i386
Investigating (9) adobe-flashplugin [ i386 ] < 10.0.32.18-1jaunty1 -> 11.2.202.238-0precise1 > ( web )
Broken adobe-flashplugin:i386 Conflicts on flashplugin-installer [ i386 ] < 11.1.102.55ubuntu0.11.10.1 -> 11.2.202.238ubuntu0.12.04.1 > ( multiverse/web )
  Considering flashplugin-installer:i386 1 as a solution to adobe-flashplugin:i386 1
  Holding Back adobe-flashplugin:i386 rather than change flashplugin-installer:i386

[Jean-Baptiste Lallement (jibel)]

You can fix the problem by removing adobe-flashplugin then try the upgrade again.

[dino99 (9d9)]

This version has expired