package libc6-dev-i386 (not installed) failed to install/upgrade: trying to overwrite '/usr/include/sys/timerfd.h', which is also in package libc6-dev-amd64 2.19-0ubuntu2

[Rainer Dickermann]

when installing the g++-multilib meta-package this error occurred

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: libc6-dev-i386 (not installed)
ProcVersionSignature: Ubuntu 3.13.0-17.37-lowlatency 3.13.6
Uname: Linux 3.13.0-17-lowlatency x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.13.3-0ubuntu1
Architecture: amd64
Date: Sun Mar 16 08:12:57 2014
DpkgTerminalLog:
 Preparing to unpack .../libc6-dev-i386_2.19-0ubuntu2_amd64.deb ...
 Unpacking libc6-dev-i386 (2.19-0ubuntu2) ...
 dpkg: error processing archive /var/cache/apt/archives/libc6-dev-i386_2.19-0ubuntu2_amd64.deb (--unpack):
  trying to overwrite '/usr/include/sys/timerfd.h', which is also in package libc6-dev-amd64 2.19-0ubuntu2
DuplicateSignature: package:libc6-dev-i386:(not installed):trying to overwrite '/usr/include/sys/timerfd.h', which is also in package libc6-dev-amd64 2.19-0ubuntu2
ErrorMessage: trying to overwrite '/usr/include/sys/timerfd.h', which is also in package libc6-dev-amd64 2.19-0ubuntu2
InstallationDate: Installed on 2014-03-08 (7 days ago)
InstallationMedia: Ubuntu-Studio 14.04 "Trusty Tahr" - Alpha amd64 (20140224)
SourcePackage: eglibc
Title: package libc6-dev-i386 (not installed) failed to install/upgrade: trying to overwrite '/usr/include/sys/timerfd.h', which is also in package libc6-dev-amd64 2.19-0ubuntu2
UpgradeStatus: No upgrade log present (probably fresh install)