package qjackctl 0.3.10-2 failed to install/upgrade: package is in a very bad inconsistent state; you should reinstall it before attempting configuration

Não consigo atualizar o sistema operacional, nem instalar programas.

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: qjackctl 0.3.10-2
ProcVersionSignature: Ubuntu 3.19.0-43.49~14.04.1-generic 3.19.8-ckt10
Uname: Linux 3.19.0-43-generic i686
ApportVersion: 2.14.1-0ubuntu3.19
Architecture: i386
Date: Sat Jan 16 19:53:53 2016
DuplicateSignature: package:qjackctl:0.3.10-2:package is in a very bad inconsistent state; you should reinstall it before attempting configuration
ErrorMessage: package is in a very bad inconsistent state; you should reinstall it before attempting configuration
InstallationDate: Installed on 2015-11-10 (71 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta i386 (20150805)
RelatedPackageVersions:
 dpkg 1.17.5ubuntu5.5
 apt 1.0.1ubuntu2.10
SourcePackage: qjackctl
Title: package qjackctl 0.3.10-2 failed to install/upgrade: package is in a very bad inconsistent state; you should reinstall it before attempting configuration
UpgradeStatus: No upgrade log present (probably fresh install)