package man-db 2.5.9-4 failed to install/upgrade: 子进程 已安装 post-installation 脚本 返回了错误号 1

[KaiserBai]

I installed GNome 3 by terminal but failed

then the software update manager could NOT install any software with the error message below: (APTdaemon)
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/aptdaemon/worker.py", line 961, in simulate
    trans.unauthenticated = self._simulate_helper(trans)
  File "/usr/lib/python2.7/dist-packages/aptdaemon/worker.py", line 1085, in _simulate_helper
    return depends, self._cache.required_download, \
  File "/usr/lib/python2.7/dist-packages/apt/cache.py", line 226, in required_download
    pm.get_archives(fetcher, self._list, self._records)
SystemError: E:I wasn't able to locate file for the ttf-mscorefonts-installer package. This might mean you need to manually fix this package.

ProblemType: Package
DistroRelease: Ubuntu 11.04
Package: man-db 2.5.9-4
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic i686
Architecture: i386
Date: Sat May 14 08:46:23 2011
ErrorMessage: 子进程 已安装 post-installation 脚本 返回了错误号 1
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
SourcePackage: man-db
Title: package man-db 2.5.9-4 failed to install/upgrade: 子进程 已安装 post-installation 脚本 返回了错误号 1
UpgradeStatus: No upgrade log present (probably fresh install)

[Daniel van Vugt (vanvugt)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug #659438, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.