An unresolvable problem occurred while calculating the upgrade: The package 'ubuntu-desktop-nanjing-natty' is marked for removal but it's in the removal blacklist

[Jiang]

An unresolvable problem occurred while calculating the upgrade:
软件包“ubuntu-desktop-nanjing-natty”标记为可移除，但它已在移除黑名单中

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: update-manager 1:0.150.5.4
ProcVersionSignature: Ubuntu 2.6.38-16.67-generic-pae 2.6.38.8
Uname: Linux 2.6.38-16-generic-pae i686
Architecture: i386
Date: Tue Feb 12 18:02:07 2013
DistributionChannelDescriptor:
 # This is a distribution channel descriptor
 # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
 canonical-oem-sutton-natty-20110909-1
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=(600,600)
InstallationMedia: Ubuntu 11.04 "Natty" - Build i386 LIVE/INSTALL Binary 20110909-15:48
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=zh_CN:en
 LANG=zh_CN.UTF-8
 SHELL=/bin/bash
SourcePackage: update-manager
UpgradeStatus: Upgraded to natty on 2013-02-12 (0 days ago)
VarLogDistupgradeApttermlog:

VarLogDistupgradeHistorylog:

VarLogDistupgradeTermlog:

[Fabio Marconi (fabiomarconi)]

oops, sorry #2 not valid
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[dino99 (9d9)]

That version is no more maintained