[Bug 941527] [NEW] Repair Broken System Package From Software Manager yields the following: package apt 0.8.16~exp12ubuntu4 failed to install/upgrade: subprocess installed post-installation script returned error exit status 127

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I'm not sure which package this appeared, sorry.  I am attempting to
repair a broken package within the software manager and its broken.  I
am attempting to fix it within the Server portion of the Ubuntu forums
in the thread titled "Ubuntu Server 64 w/ Desktop GUI Accidental
Upgrade"

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: apt 0.8.16~exp12ubuntu4
ProcVersionSignature: Ubuntu 3.2.0-16.25-generic 3.2.6
Uname: Linux 3.2.0-16-generic x86_64
ApportVersion: 1.91-0ubuntu1
Architecture: amd64
Date: Sun Feb 26 12:02:25 2012
DpkgTerminalLog:
 Setting up apt (0.8.16~exp12ubuntu4) ...
 gpg: symbol lookup error: /usr/local/lib/libreadline.so.6: undefined symbol: UP
 gpg: symbol lookup error: /usr/local/lib/libreadline.so.6: undefined symbol: UP
 dpkg: error processing apt (--configure):
  subprocess installed post-installation script returned error exit status 127
DuplicateSignature:
 Setting up apt (0.8.16~exp12ubuntu4) ...
 gpg: symbol lookup error: /usr/local/lib/libreadline.so.6: undefined symbol: UP
 gpg: symbol lookup error: /usr/local/lib/libreadline.so.6: undefined symbol: UP
 dpkg: error processing apt (--configure):
  subprocess installed post-installation script returned error exit status 127
ErrorMessage: subprocess installed post-installation script returned error exit status 127
InstallationMedia: Ubuntu-Server 10.10 "Maverick Meerkat" - Release amd64 (20101007)
SourcePackage: apt
Title: package apt 0.8.16~exp12ubuntu4 failed to install/upgrade: subprocess installed post-installation script returned error exit status 127
UpgradeStatus: Upgraded to precise on 2012-02-24 (1 days ago)

** Affects: apt (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-package need-duplicate-check precise
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Repair Broken System Package From Software Manager yields the following: package apt 0.8.16~exp12ubuntu4 failed to install/upgrade: subprocess installed post-installation script returned error exit status 127
https://bugs.launchpad.net/bugs/941527
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