I installed the virtualbox extensio pack today today and got the same error
virtualbox-ext-pack: downloading: https://download.virtualbox.org/virtualbox/6.1.6/Oracle_VM_VirtualBox_Extension_Pack-6.1.6.vbox-extpack The file will be downloaded into /usr/share/virtualbox-ext-pack VBoxManage: error: Failed to initialize COM! (hrc=NS_ERROR_FAILURE) Hash mismatch Oracle_VM_VirtualBox_Extension_Pack-6.1.6.vbox-extpack: expected 80b96b4b51a502141f6a8981f1493ade08a00762622c39e48319e5b122119bf3, or wrong accept-license key, removing the file. dpkg: error processing package virtualbox-ext-pack (--configure): installed virtualbox-ext-pack package post-installation script subprocess returned error exit status 1 Errors were encountered while processing: virtualbox-ext-pack E: Sub-process /usr/bin/dpkg returned an error code (1) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1875409 Title: package virtualbox-ext-pack 6.1.6-1 failed to install/upgrade: o subprocesso instalado, do pacote virtualbox-ext-pack, o script post- installation retornou erro do status de saída 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/virtualbox-ext-pack/+bug/1875409/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs