package libllvm3.4 1:3.4-1ubuntu3 failed to install/upgrade: 62.069:package is in a very bad inconsistent state; you should reinstall it before attempting configuration

[David Wassell]

just locks up

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: libllvm3.4 1:3.4-1ubuntu3
ProcVersionSignature: Ubuntu 4.4.0-45.66~14.04.1-generic 4.4.21
Uname: Linux 4.4.0-45-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.21
Architecture: amd64
Date: Fri Nov 4 11:13:12 2016
DuplicateSignature: package:libllvm3.4:1:3.4-1ubuntu3:62.069:package is in a very bad inconsistent state; you should reinstall it before attempting configuration
ErrorMessage: 62.069:package is in a very bad inconsistent state; you should reinstall it before attempting configuration
InstallationDate: Installed on 2016-11-03 (0 days ago)
InstallationMedia: Ubuntu 14.04.5 LTS "Trusty Tahr" - Release amd64 (20160803)
RelatedPackageVersions:
 dpkg 1.17.5ubuntu5.7
 apt 1.0.1ubuntu2.15
SourcePackage: llvm-toolchain-3.4
Title: package libllvm3.4 1:3.4-1ubuntu3 failed to install/upgrade: 62.069:package is in a very bad inconsistent state; you should reinstall it before attempting configuration
UpgradeStatus: No upgrade log present (probably fresh install)