package libqtgui4:amd64 4:4.8.6+git64-g5dc8b2b+dfsg-3~ubuntu6.1 failed to install/upgrade: package libqtgui4:amd64 is already installed and configured

[eweissge]

Error on startup

ProblemType: Package
DistroRelease: Ubuntu 15.04
Package: libqtgui4:amd64 4:4.8.6+git64-g5dc8b2b+dfsg-3~ubuntu6.1
ProcVersionSignature: Ubuntu 3.19.0-20.20-generic 3.19.8
Uname: Linux 3.19.0-20-generic x86_64
ApportVersion: 2.17.2-0ubuntu1.1
AptdaemonVersion: 1.1.1+bzr982-0ubuntu3
Architecture: amd64
CrashReports:
 640:0:118:1812591:2015-06-10 14:42:17.455475330 -0400:2015-06-10 14:42:21.031706225 -0400:/var/crash/libqt4-declarative:amd64.0.crash
 600:109:118:0:2015-06-10 14:42:22.507821388 -0400:2015-06-10 14:42:22.507821388 -0400:/var/crash/libqt4-declarative:amd64.0.uploaded
 644:0:118:0:2015-06-10 14:42:20.011619660 -0400:2015-06-10 14:42:20.011619660 -0400:/var/crash/libqt4-declarative:amd64.0.upload
 600:0:118:279768:2015-06-10 14:25:23.129116058 -0400:2015-06-10 14:25:24.129116058 -0400:/var/crash/libqtgui4:amd64.0.crash
 600:0:118:279780:2015-06-10 14:25:24.185116208 -0400:2015-06-10 14:25:24.157116089 -0400:/var/crash/libqt4-designer:amd64.0.crash
Date: Wed Jun 10 14:25:23 2015
DuplicateSignature: package:libqtgui4:amd64:4:4.8.6+git64-g5dc8b2b+dfsg-3~ubuntu6.1:package libqtgui4:amd64 is already installed and configured
ErrorMessage: package libqtgui4:amd64 is already installed and configured
InstallationDate: Installed on 2015-06-10 (0 days ago)
InstallationMedia: It
RelatedPackageVersions:
 dpkg 1.17.25ubuntu1
 apt 1.0.9.7ubuntu4
SourcePackage: dpkg
Title: package libqtgui4:amd64 4:4.8.6+git64-g5dc8b2b+dfsg-3~ubuntu6.1 failed to install/upgrade: package libqtgui4:amd64 is already installed and configured
UpgradeStatus: No upgrade log present (probably fresh install)