Public bug reported: I had this issue during a simple upgrade.
It looks like the downloaded .deb file was corrupted. My workaround was to delete the file : sudo rm liboxideqtcore0_1.7.8-0ubuntu0.14.04.1_amd64.deb and then reinstall it : sudo apt-get install --reinstall liboxideqtcore0 ProblemType: Package DistroRelease: Ubuntu 14.04 Package: liboxideqtcore0 1.6.6-0ubuntu0.14.04.1 ProcVersionSignature: Ubuntu 3.13.0-53.88-generic 3.13.11-ckt19 Uname: Linux 3.13.0-53-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.11 Architecture: amd64 Date: Wed May 27 20:52:00 2015 DuplicateSignature: package:liboxideqtcore0:1.6.6-0ubuntu0.14.04.1:cannot copy extracted data for './usr/lib/x86_64-linux-gnu/libOxideQtCore.so.0' to '/usr/lib/x86_64-linux-gnu/libOxideQtCore.so.0.dpkg-new': unexpected end of file or stream ErrorMessage: cannot copy extracted data for './usr/lib/x86_64-linux-gnu/libOxideQtCore.so.0' to '/usr/lib/x86_64-linux-gnu/libOxideQtCore.so.0.dpkg-new': unexpected end of file or stream InstallationDate: Installed on 2014-05-04 (388 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) SourcePackage: oxide-qt Title: package liboxideqtcore0 1.6.6-0ubuntu0.14.04.1 failed to install/upgrade: cannot copy extracted data for './usr/lib/x86_64-linux-gnu/libOxideQtCore.so.0' to '/usr/lib/x86_64-linux-gnu/libOxideQtCore.so.0.dpkg-new': unexpected end of file or stream UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: oxide-qt (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-package trusty -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1459397 Title: package liboxideqtcore0 1.6.6-0ubuntu0.14.04.1 failed to install/upgrade: cannot copy extracted data for './usr/lib/x86_64 -linux-gnu/libOxideQtCore.so.0' to '/usr/lib/x86_64-linux- gnu/libOxideQtCore.so.0.dpkg-new': unexpected end of file or stream To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/oxide-qt/+bug/1459397/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs