*** This bug is a duplicate of bug 1685984 *** https://bugs.launchpad.net/bugs/1685984
I can confirm that sophos on-demand scan cause the problem for me the error message was (but the file which is not able to open was random): dpkg: error processing archive /var/cache/apt/archives/nodejs_8.14.0-1nodesource1_amd64.deb (--install): unable to open '/usr/lib/node_modules/npm/node_modules/tar/lib/mkdir.js.dpkg-new': Operation not permitted -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1739991 Title: error processing archive (--unpack): unable to open '<FILE>.dpkg-new': Operation not permitted To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dpkg/+bug/1739991/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs