Removing accountwizard (4:15.08.2-0ubuntu1) ... Purging configuration files for accountwizard (4:15.08.2-0ubuntu1) ... Removing akregator (4:15.08.2-0ubuntu1) ... Purging configuration files for akregator (4:15.08.2-0ubuntu1) ... Removing apport-kde (2.19.1-0ubuntu5) ... Removing apturl-kde (0.5.2ubuntu9) ... Removing baloo-utils (4:4.14.3-0ubuntu5) ... Removing bluedevil (4:5.4.2-0ubuntu1) ... Removing plasma-desktop (4:5.4.2-0ubuntu2) ... Purging configuration files for plasma-desktop (4:5.4.2-0ubuntu2) ... Removing breeze (4:5.4.2-0ubuntu2) ... Removing qapt-deb-installer (3.0.1-0ubuntu1.1) ... Removing muon-notifier (4:5.4.2-0ubuntu1) ... Removing muon-updater (4:5.4.2-0ubuntu1) ... Removing gwenview (4:15.08.2-0ubuntu1) ... Purging configuration files for gwenview (4:15.08.2-0ubuntu1) ... Removing k3b (2.0.3-0ubuntu3) ... Purging configuration files for k3b (2.0.3-0ubuntu3) ... Removing sddm (0.11.0-0ubuntu11) ... [?25l[?1c                 [1 8;1H                                 Package configuration┌────────────────────────────────────────────────────────────────────────┤ Configuring sddm ├─────────────────────────────────────────────────────────────────────────┐│ A display manager is a program that provides graphical login capabilities for the X Wind ow System. │ │ │ │ Only one display manager can manage a given X server, but multiple display manager packages are installed. Please select which display manager should run by │ │ default. │ │ │ │ Multiple display managers can run simultaneously if they are configured to manage different servers; to achieve this, configure the display managers accordingly, │ │ edit each of their init scripts in /etc/init.d, and disable the check for a default display manager. │ │ │ │ Default display manager: │ │ │ │ gdm  │ │ lightdm │ │ │ │ │ │ │  [30m│ │ └─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘  gdm lightdm[?25h[?0c  Please be sure to run "dpkg-reconfigure lightdm". Purging configuration files for sddm (0.11.0-0ubuntu11) ... Removing user `sddm' ... Warning: group `sddm' has no more members. userdel: user sddm is currently used by process 1121 /usr/sbin/deluser: `/usr/sbin/userdel sddm' returned error code 8. Exiting. Could not remove sddm user. /usr/sbin/delgroup: `sddm' still has `sddm' as their primary group! Could not remove sddm group. userdel: user sddm is currently used by process 1121 /usr/sbin/deluser: `/usr/sbin/userdel sddm' returned error code 8. Exiting. /usr/sbin/delgroup: `sddm' still has `sddm' as their primary group! dpkg: error processing package sddm (--purge): subprocess installed post-removal script returned error exit status 128