Why does installing lxde-core not also install lxterminal even though it is in the list of recommended packages?Environment: Debian Stretch (installed by debootstrap and used by chroot)Because lxpanel only recommend a virtual package ,so seem which one of x-terminal-emulator will installed is undefined behaviorAs far as I saw,as a practical result termit will installed.I still can't understand so result.I tried the command:root@debian:/# echo n | aptitude -P -r install lxde-core |grep lxterminalWarning: Invalid locale (please review locale settings, this might lead to problems later):  locale::facet::_S_create_c_locale name not validroot@debian:/# I am sure this usually can and should install (included) recommended packages (the -r option for aptitude)However, lxterminal is not installed despite there being no other x-terminal-emulator on the system:root@debian:/# aptitude --disable-columns search  '~Px-terminal-emulator' |grep -v ^pWarning: Invalid locale (please review locale settings, this might lead to problems later):  locale::facet::_S_create_c_locale name not validroot@debian:/# aptitude why-not:root@debian:/# aptitude why-not lxterminalWarning: Invalid locale (please review locale settings, this might lead to problems later):  locale::facet::_S_create_c_locale name not validNot currently installedThe candidate version 0.3.0-1 has priority optionalNo dependencies require to remove lxterminalroot@debian:/#comment tell me do try more command(done by chroot to the Stretch , the host is Jessie):root@debian:/# echo n |apt-get --install-recommends install lxde-core |grep lxterminalroot@debian:/# echo n |apt install lxde-core |grep lxterminalWARNING: apt does not have a stable CLI interface. Use with caution in scripts.root@debian:/# Moreover, on a Jessie install (again installed by debootstrap and used with chroot), the same command will automatically include lxterminal ,but lxterminal without the {a} suffix:root@debian:/# echo n | aptitude -P -r install lxde-core |grep --color=always lxterminal  lxterminal mime-support{a} miscfiles{a} ntfs-3g{a} obconf{a} openbox{a} on jessie aptitude merely listed lxterminal without the {a} suffix,so this can't reflect by apt or apt-get?
Why isn't lxterminal installed when installing lxde-core?
debian;apt;lxde;aptitude