not updating to version 11.10

[Kirill]

An unresolvable problem occurred while calculating the upgrade:
E:Ошибка, pkgProblemResolver::Resolve сгенерировал повреждённые пакеты. Это может быть вызвано отложенными (held) пакетами.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: update-manager 1:0.150.5
ProcVersionSignature: Ubuntu 2.6.38-12.51-generic 2.6.38.8
Uname: Linux 2.6.38-12-generic i686
NonfreeKernelModules: wl
Architecture: i386
Date: Sat Dec 24 19:53:19 2011
GConfNonDefault:
 /apps/update-manager/check_new_release_ignore=
 /apps/update-manager/first_run=false
 /apps/update-manager/show_details=true
 /apps/update-manager/window_size=(600,648)
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=ru_RU:en
 LANG=ru_RU.UTF-8
 SHELL=/bin/bash
SourcePackage: update-manager
UpgradeStatus: Upgraded to natty on 2011-12-24 (0 days ago)
VarLogDistupgradeApttermlog:

VarLogDistupgradeHistorylog:

VarLogDistupgradeSystemstatetargz:

VarLogDistupgradeTermlog:

[dino99 (9d9)]

That version is no more maintained