package icedtea-netx 1.5-1ubuntu1 [modified: usr/bin/policyeditor usr/share/doc/icedtea-netx/AUTHORS usr/share/doc/icedtea-netx/NEWS.gz usr/share/doc/icedtea-netx/changelog.Debian.gz] failed to install/upgrade: trying to overwrite shared '/usr/bin/policyeditor', which is different from other instances of package icedtea-netx:amd64

[Klaus Elmer]

Was not able to update.

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: icedtea-netx 1.5-1ubuntu1 [modified: usr/bin/policyeditor usr/share/doc/icedtea-netx/AUTHORS usr/share/doc/icedtea-netx/NEWS.gz usr/share/doc/icedtea-netx/changelog.Debian.gz]
ProcVersionSignature: Ubuntu 3.13.0-68.111-generic 3.13.11-ckt27
Uname: Linux 3.13.0-68-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.19
Architecture: amd64
Date: Wed Nov 25 12:51:14 2015
Dependencies: icedtea-netx-common 1.5.3-0ubuntu0.14.04.1
DuplicateSignature: package:icedtea-netx:1.5-1ubuntu1 [modified: usr/bin/policyeditor usr/share/doc/icedtea-netx/AUTHORS usr/share/doc/icedtea-netx/NEWS.gz usr/share/doc/icedtea-netx/changelog.Debian.gz]:trying to overwrite shared '/usr/bin/policyeditor', which is different from other instances of package icedtea-netx:amd64
ErrorMessage: trying to overwrite shared '/usr/bin/policyeditor', which is different from other instances of package icedtea-netx:amd64
InstallationDate: Installed on 2014-02-13 (649 days ago)
InstallationMedia: Ubuntu 12.04.3 LTS "Precise Pangolin" - Release amd64 (20130820.1)
RelatedPackageVersions:
 dpkg 1.17.5ubuntu5.4
 apt 1.0.1ubuntu2.10
SourcePackage: icedtea-web
Title: package icedtea-netx 1.5-1ubuntu1 [modified: usr/bin/policyeditor usr/share/doc/icedtea-netx/AUTHORS usr/share/doc/icedtea-netx/NEWS.gz usr/share/doc/icedtea-netx/changelog.Debian.gz] failed to install/upgrade: trying to overwrite shared '/usr/bin/policyeditor', which is different from other instances of package icedtea-netx:amd64
UpgradeStatus: Upgraded to trusty on 2014-07-24 (489 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Jan Lillelund (jan-lillelund)]

Running "apt-get -f install" yields:

dpkg: error processing archive /var/cache/apt/archives/icedtea-netx_1.5.3-0ubuntu0.14.04.1_amd64.deb (--unpack):
 trying to overwrite shared '/usr/bin/policyeditor', which is different from other instances of package icedtea-netx:amd64
Processing triggers for man-db (2.6.7.1-1ubuntu1) ...
Errors were encountered while processing:
 /var/cache/apt/archives/icedtea-netx_1.5.3-0ubuntu0.14.04.1_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

This seems to effectively break apt-get, preventing any other upgrades from being performed (or doing things such as autoremove)