package bash 4.3-14ubuntu1.2 failed to install/upgrade: subprocess new pre-installation script returned error exit status 2

Ran do-release-upgrade from 16.04 LTS Ubuntu terminal on WSL. The upgrade still appeared to work because I'm not on 18.04 LTS, but it threw this error nonetheless. I attempted to send a report through the command as well, but it also generated this link for me to go to so that's what I did. :)

Keep up the Awesome work all you Ubuntu devs!!!! ^.^

UPDATE! Oh my gosh, my Chrome crashed after writing the above while trying to attach a screenshot and I don't know if it was Chrome or your site, but whoever preserved the state of what I typed previously, I LOVE YOU!!! :P

ProblemType: Package
DistroRelease: Ubuntu 18.04
Package: bash 4.3-14ubuntu1.2
ProcVersionSignature: Microsoft 4.4.0-17134.345-Microsoft 4.4.35
Uname: Linux 4.4.0-17134-Microsoft x86_64
ApportVersion: 2.20.1-0ubuntu2.16
Architecture: amd64
Date: Thu Nov 15 06:42:59 2018
Dmesg:

DpkgTerminalLog:
 Preparing to unpack .../bash_4.4.18-2ubuntu1_amd64.deb ...
 dpkg (subprocess): unable to execute new pre-installation script (/var/lib/dpkg/tmp.ci/preinst): No such file or directory
 dpkg: error processing archive /var/cache/apt/archives/bash_4.4.18-2ubuntu1_amd64.deb (--unpack):
  subprocess new pre-installation script returned error exit status 2
DuplicateSignature:
 package:bash:4.3-14ubuntu1.2
 Preparing to unpack .../bash_4.4.18-2ubuntu1_amd64.deb ...
 dpkg (subprocess): unable to execute new pre-installation script (/var/lib/dpkg/tmp.ci/preinst): No such file or directory
 dpkg: error processing archive /var/cache/apt/archives/bash_4.4.18-2ubuntu1_amd64.deb (--unpack):
  subprocess new pre-installation script returned error exit status 2
ErrorMessage: subprocess new pre-installation script returned error exit status 2
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.4
 apt 1.2.26
SourcePackage: bash
Title: package bash 4.3-14ubuntu1.2 failed to install/upgrade: subprocess new pre-installation script returned error exit status 2
UpgradeStatus: Upgraded to bionic on 2018-11-15 (0 days ago)