libgl1-mesa-dri install error

[Jesse]

Package libgl1-mesa-dri 10.1.3-0ubuntu0.6 failed to install/upgrade with the following error message:

trying to overwrite shared '/etc/drirc', which is different from other instances of package libgl1-mesa-dri:i386

Platform: Ubuntu 14.04 LTS.

I was installing it as a dependency while installing libqt5opengl5-dev.

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: libgl1-mesa-dri 10.1.3-0ubuntu0.6
ProcVersionSignature: Ubuntu 3.19.0-66.74~14.04.1-generic 3.19.8-ckt22
Uname: Linux 3.19.0-66-generic x86_64
NonfreeKernelModules: openafs
.tmp.unity.support.test.0:

ApportVersion: 2.14.1-0ubuntu3.21
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
Date: Mon Aug 29 21:00:55 2016
DistUpgraded: 2016-08-04 00:14:27,819 DEBUG enabling apt cron job
DistroCodename: trusty
DistroVariant: ubuntu
DuplicateSignature: package:libgl1-mesa-dri:10.1.3-0ubuntu0.6:trying to overwrite shared '/etc/drirc', which is different from other instances of package libgl1-mesa-dri:i386
ErrorMessage: trying to overwrite shared '/etc/drirc', which is different from other instances of package libgl1-mesa-dri:i386
ExtraDebuggingInterest: Yes
GraphicsCard:
 Advanced Micro Devices, Inc. [AMD/ATI] Caicos [Radeon HD 6450/7450/8450 / R5 230 OEM] [1002:6779] (prog-if 00 [VGA controller])
   Subsystem: Dell Radeon HD 6450 [1028:2120]
MachineType: Dell Inc. OptiPlex 790
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-66-generic root=/dev/mapper/gs11709-root ro splash quiet vt.handoff=7
RelatedPackageVersions:
 dpkg 1.17.5ubuntu5.7
 apt 1.0.1ubuntu2.14
SourcePackage: mesa
Title: package libgl1-mesa-dri 10.1.3-0ubuntu0.6 failed to install/upgrade: trying to overwrite shared '/etc/drirc', which is different from other instances of package libgl1-mesa-dri:i386
UnitySupportTest: Error: command ['/usr/lib/nux/unity_support_test', '-p', '-f'] failed with exit code 127: /usr/lib/nux/unity_support_test: error while loading shared libraries: libGL.so.1: cannot open shared object file: No such file or directory
UpgradeStatus: Upgraded to trusty on 2016-08-04 (25 days ago)
dmi.bios.date: 05/28/2011
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A05
dmi.board.name: 0HY9JP
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 6
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA05:bd05/28/2011:svnDellInc.:pnOptiPlex790:pvr01:rvnDellInc.:rn0HY9JP:rvrA00:cvnDellInc.:ct6:cvr:
dmi.product.name: OptiPlex 790
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.11.3+14.04.20160425-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.67-1ubuntu0.14.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.3-0ubuntu0.6
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.3-0ubuntu0.6
version.xserver-xorg-core: xserver-xorg-core N/A
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A
version.xserver-xorg-video-intel: xserver-xorg-video-intel N/A
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A
xserver.bootTime: Mon Aug 29 20:48:06 2016
xserver.configfile: default
xserver.devices:
 input Power Button KEYBOARD, id 6
 input Power Button KEYBOARD, id 7
 input Dell Dell USB Entry Keyboard KEYBOARD, id 8
 input USB Optical Mouse MOUSE, id 9
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.17.1-0ubuntu3.1~trusty1.1
xserver.video_driver: radeon