Preparing to unpack .../libapt-inst2.0_1.2.20_amd64.deb ... Unpacking libapt-inst2.0:amd64 (1.2.20) ... Preparing to unpack .../python3-apt_1.1.0~beta1build1_amd64.deb ... Unpacking python3-apt (1.1.0~beta1build1) over (0.9.3.5ubuntu2) ... Preparing to unpack .../python3-pycurl_7.43.0-1ubuntu1_amd64.deb ... Unpacking python3-pycurl (7.43.0-1ubuntu1) over (7.19.3-0ubuntu3) ... Preparing to unpack .../python3-dbus_1.2.0-3_amd64.deb ... Unpacking python3-dbus (1.2.0-3) over (1.2.0-2build2) ... Preparing to unpack .../python3-pkg-resources_20.7.0-1_all.deb ... Unpacking python3-pkg-resources (20.7.0-1) over (3.3-1ubuntu2) ... Setting up libssl1.0.0:amd64 (1.0.2g-1ubuntu4.8) ... Unescaped left brace in regex is deprecated, passed through in regex; marked by <-- HERE in m/^(.*?)(\\)?\${ <-- HERE ([^{}]+)}(.*)$/ at /usr/share/perl5/Debconf/Question.pm line 72. Unescaped left brace in regex is deprecated, passed through in regex; marked by <-- HERE in m/\${ <-- HERE ([^}]+)}/ at /usr/share/perl5/Debconf/Config.pm line 30. Checking for services that may need to be restarted...done. Checking for services that may need to be restarted...done. Checking init scripts... Unknown terminal: st-256color Check the TERM environment variable. Also make sure that the terminal is defined in the terminfo database. Alternatively, set the TERMCAP environment variable to the desired termcap entry. debconf: whiptail output the above errors, giving up! dpkg: error processing package libssl1.0.0:amd64 (--configure): subprocess installed post-installation script returned error exit status 255 Setting up libssl1.0.0:i386 (1.0.2g-1ubuntu4.8) ...