package supertux-data 0.5.1-1build1 failed to install/upgrade: unable to open '/usr/share/games/supertux2/images/decal/explanations/billboard-fireflower.png.dpkg-new': Operation not permitted

[Mika Norjavaara]

sorry i don't have any details (newbie)

ProblemType: Package
DistroRelease: Ubuntu 18.04
Package: supertux-data 0.5.1-1build1
ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
Uname: Linux 4.15.0-20-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
Date: Wed May 2 17:52:07 2018
Dependencies:

ErrorMessage: unable to open '/usr/share/games/supertux2/images/decal/explanations/billboard-fireflower.png.dpkg-new': Operation not permitted
InstallationDate: Installed on 2018-04-29 (3 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
PackageArchitecture: all
Python3Details: /usr/bin/python3.6, Python 3.6.5, python3-minimal, 3.6.5-3
PythonDetails: /usr/bin/python2.7, Python 2.7.15rc1, python-minimal, 2.7.15~rc1-1
RelatedPackageVersions:
 dpkg 1.19.0.5ubuntu2
 apt 1.6.1
SourcePackage: supertux
Title: package supertux-data 0.5.1-1build1 failed to install/upgrade: unable to open '/usr/share/games/supertux2/images/decal/explanations/billboard-fireflower.png.dpkg-new': Operation not permitted
UpgradeStatus: No upgrade log present (probably fresh install)