package mysql-client-core-5.5 5.5.43-0ubuntu0.14.04.1 failed to install/upgrade: package mysql-client-core-5.5 is already installed and configured

[claudio]

i don`t know because the system information the problem

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: mysql-client-core-5.5 5.5.43-0ubuntu0.14.04.1
ProcVersionSignature: Ubuntu 3.13.0-49.83-generic 3.13.11-ckt17
Uname: Linux 3.13.0-49-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.10
AptdaemonVersion: 1.1.1-1ubuntu5.1
Architecture: amd64
Date: Sun Apr 26 17:29:30 2015
DuplicateSignature: package:mysql-client-core-5.5:5.5.43-0ubuntu0.14.04.1:package mysql-client-core-5.5 is already installed and configured
ErrorMessage: package mysql-client-core-5.5 is already installed and configured
InstallationDate: Installed on 2015-01-24 (92 days ago)
InstallationMedia: It
Logs.var.log.daemon.log:

MySQLConf.etc.mysql.conf.d..keepme:
MySQLConf.etc.mysql.conf.d.mysqld.safe.syslog.cnf:
 [mysqld_safe]
 syslog
MySQLVarLibDirListing: ['ib_logfile0', 'mysql', 'debian-5.5.flag', 'mysql_upgrade_info', 'ibdata1', 'performance_schema', 'ib_logfile1']
ProcCmdline: BOOT_IMAGE=/boot/vmlinuz-3.13.0-49-generic root=UUID=3bae8c78-64c3-47a8-bcc6-ac4911da3e25 ro quiet splash vt.handoff=7
SourcePackage: dpkg
Title: package mysql-client-core-5.5 5.5.43-0ubuntu0.14.04.1 failed to install/upgrade: package mysql-client-core-5.5 is already installed and configured
UpgradeStatus: No upgrade log present (probably fresh install)