package libboost-system1.46-dev (not installed) failed to install/upgrade: trying to overwrite '/usr/lib/libboost_system.a', which is also in package libboost-system1.40-dev 1.40.0-4ubuntu4

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System reports error after trying to install libboost 1.46

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: libboost-system1.46-dev (not installed)
ProcVersionSignature: Ubuntu 3.2.0-41.66-generic 3.2.42
Uname: Linux 3.2.0-41-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu17.2
Architecture: amd64
Date: Mon May 13 16:50:29 2013
ErrorMessage: trying to overwrite '/usr/lib/libboost_system.a', which is also in package libboost-system1.40-dev 1.40.0-4ubuntu4
InstallationMedia: Ubuntu 10.04.3 LTS "Lucid Lynx" - Release amd64 (20110720.1)
MarkForUpload: True
SourcePackage: boost1.46
Title: package libboost-system1.46-dev (not installed) failed to install/upgrade: trying to overwrite '/usr/lib/libboost_system.a', which is also in package libboost-system1.40-dev 1.40.0-4ubuntu4
UpgradeStatus: Upgraded to precise on 2013-05-03 (10 days ago)