package cpp 4:4.6.3-1ubuntu5 failed to install/upgrade: cpp:i386 4

[ishaq]

Errors were encountered while processing:
 /var/cache/apt/archives/binutils_2.22-6ubuntu1_i386.deb
 /var/cache/apt/archives/cpp-4.6_4.6.3-1ubuntu5_i386.deb
 /var/cache/apt/archives/cpp_4%3a4.6.3-1ubuntu5_i386.deb
 /var/cache/apt/archives/gcc-4.6_4.6.3-1ubuntu5_i386.deb
 /var/cache/apt/archives/gcc_4%3a4.6.3-1ubuntu5_i386.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: cpp 4:4.6.3-1ubuntu5
ProcVersionSignature: Ubuntu 3.2.0-36.57-generic 3.2.35
Uname: Linux 3.2.0-36-generic x86_64
ApportVersion: 2.0.1-0ubuntu17.1
Architecture: amd64
Date: Wed Jan 30 13:22:20 2013
DuplicateSignature:
 Unpacking libmpc2:i386 (from .../libmpc2_0.9-4_i386.deb) ...
 Selecting previously unselected package binutils:i386.
 dpkg: error processing /var/cache/apt/archives/binutils_2.22-6ubuntu1_i386.deb (--unpack):
  binutils:i386 2.22-6ubuntu1 (Multi-Arch: no) is not co-installable with binutils:amd64 2.22-6ubuntu1 (Multi-Arch: no) which is currently installed
ErrorMessage: cpp:i386 4
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
MarkForUpload: True
SourcePackage: gcc-defaults
Title: package cpp 4:4.6.3-1ubuntu5 failed to install/upgrade: cpp:i386 4
UpgradeStatus: Upgraded to precise on 2013-01-30 (0 days ago)

[Matthias Klose (doko)]

Selecting previously unselected package binutils:i386.
dpkg: error processing /var/cache/apt/archives/binutils_2.22-6ubuntu1_i386.deb (--unpack):
 binutils:i386 2.22-6ubuntu1 (Multi-Arch: no) is not co-installable with binutils:amd64 2.22-6ubuntu1 (Multi-Arch: no) which is currently installed
Selecting previously unselected package cpp-4.6:i386.
dpkg: error processing /var/cache/apt/archives/cpp-4.6_4.6.3-1ubuntu5_i386.deb (--unpack):
 cpp-4.6:i386 4.6.3-1ubuntu5 (Multi-Arch: no) is not co-installable with cpp-4.6:amd64 4.6.3-1ubuntu5 (Multi-Arch: no) which is currently installed
Selecting previously unselected package cpp:i386.
dpkg: error processing /var/cache/apt/archives/cpp_4%3a4.6.3-1ubuntu5_i386.deb (--unpack):
 cpp:i386 4:4.6.3-1ubuntu5 (Multi-Arch: allowed) is not co-installable with cpp:amd64 4:4.6.3-1ubuntu5 (Multi-Arch: allowed) which is currently installed

so what do you not understand?

[Launchpad Janitor (janitor)]

[Expired for gcc-defaults (Ubuntu) because there has been no activity for 60 days.]