package libsasl2-2:i386 2.1.25.dfsg1-17build1 failed to install/upgrade: package is in a very bad inconsistent state; you should reinstall it before attempting configuration

[taurusgr]

I tried to install a program which could install iTunes but it failed and after that I have this problem that the update package
could not install.

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: libsasl2-2:i386 2.1.25.dfsg1-17build1
ProcVersionSignature: Ubuntu 3.19.0-56.62~14.04.1-generic 3.19.8-ckt15
Uname: Linux 3.19.0-56-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.19
Architecture: amd64
Date: Tue Mar 22 06:20:30 2016
DuplicateSignature: package:libsasl2-2:i386:2.1.25.dfsg1-17build1: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 2016-02-06 (45 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
PackageArchitecture: i386
RelatedPackageVersions:
 dpkg 1.17.5ubuntu5.5
 apt 1.0.1ubuntu2.11
SourcePackage: cyrus-sasl2
Title: package libsasl2-2:i386 2.1.25.dfsg1-17build1 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)