package libqt5test5 5.5.1+dfsg-16ubuntu7.1 failed to install/upgrade: read error in '/var/lib/dpkg/info/libqt5test5:amd64.triggers': Is a directory

[ינון-דוד-צדוק (Yinon-David-Zadok)]

no idea what happend, apport jumped, so went with it.

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: libqt5test5 5.5.1+dfsg-16ubuntu7.1
ProcVersionSignature: Ubuntu 4.4.0-59.80-generic 4.4.35
Uname: Linux 4.4.0-59-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia
ApportVersion: 2.20.1-0ubuntu2.5
Architecture: amd64
Date: Thu Jan 26 16:03:56 2017
DuplicateSignature:
 package:libqt5test5:5.5.1+dfsg-16ubuntu7.1
 Preparing to unpack .../libqt5test5_5.5.1+dfsg-16ubuntu7.2_amd64.deb ...
 dpkg: error processing archive /var/cache/apt/archives/libqt5test5_5.5.1+dfsg-16ubuntu7.2_amd64.deb (--unpack):
  read error in '/var/lib/dpkg/info/libqt5test5:amd64.triggers': Is a directory
ErrorMessage: read error in '/var/lib/dpkg/info/libqt5test5:amd64.triggers': Is a directory
InstallationDate: Installed on 2016-06-23 (217 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.18
SourcePackage: qtbase-opensource-src
Title: package libqt5test5 5.5.1+dfsg-16ubuntu7.1 failed to install/upgrade: read error in '/var/lib/dpkg/info/libqt5test5:amd64.triggers': Is a directory
UpgradeStatus: No upgrade log present (probably fresh install)

[ינון-דוד-צדוק (Yinon-David-Zadok) (yinon-david-zadok)]

if it is a bug and can't be fixed, would you provide a solution or a way to remove this package?