libomp5-8 fails to install

There appears to be a conflict between libomp5-7 and libomp5-8

root@cerberus:/space/home/jlquinn/Videos# aptitude
Performing actions...
Preconfiguring packages ...
(Reading database ... 359318 files and directories currently installed.)
Preparing to unpack .../libomp5-8_1%3a8-3~ubuntu18.04.1_amd64.deb ...
Unpacking libomp5-8:amd64 (1:8-3~ubuntu18.04.1) ...
dpkg: error processing archive /var/cache/apt/archives/libomp5-8_1%3a8-3~ubuntu18.04.1_amd64.deb (--unpack):
 trying to overwrite '/usr/lib/x86_64-linux-gnu/libomp.so.5', which is also in package libomp5-7:amd64 1:7-3~ubuntu0.18.04.1
Preparing to unpack .../flashplugin-installer_32.0.0.192ubuntu0.18.04.1_amd64.deb ...
Unpacking flashplugin-installer (32.0.0.192ubuntu0.18.04.1) over (32.0.0.171ubuntu0.18.04.1) ...
Errors were encountered while processing:
 /var/cache/apt/archives/libomp5-8_1%3a8-3~ubuntu18.04.1_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
Processing triggers for update-notifier-common (3.192.1.6) ...
flashplugin-installer: processing...
flashplugin-installer: downloading http://archive.canonical.com/pool/partner/a/adobe-flashplugin/adobe-flashplugin_20190514.1.orig.tar.gz
Get:1 http://archive.canonical.com/pool/partner/a/adobe-flashplugin/adobe-flashplugin_20190514.1.orig.tar.gz [30.5 MB]
Fetched 30.5 MB in 4s (6,802 kB/s)
Installing from local file /var/lib/update-notifier/package-data-downloads/partial/adobe-flashplugin_20190514.1.orig.tar.gz
Flash Plugin installed.
dpkg: dependency problems prevent configuration of libomp-8-dev:
 libomp-8-dev depends on libomp5-8 (= 1:8-3~ubuntu18.04.1); however:
  Package libomp5-8:amd64 is not installed.

dpkg: error processing package libomp-8-dev (--configure):
 dependency problems - leaving unconfigured
Processing triggers for libc-bin (2.27-3ubuntu1) ...
Setting up flashplugin-installer (32.0.0.192ubuntu0.18.04.1) ...
Errors were encountered while processing:
 libomp-8-dev
Press Return to continue, 'q' followed by Return to quit.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: libomp5-8 (not installed)
ProcVersionSignature: Ubuntu 4.15.0-48.51-generic 4.15.18
Uname: Linux 4.15.0-48-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.6
Architecture: amd64
Date: Tue May 14 11:34:10 2019
InstallationDate: Installed on 2016-05-30 (1078 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: llvm-toolchain-8
UpgradeStatus: Upgraded to bionic on 2018-09-17 (239 days ago)