I did emerge --sync today, then emerge -puNDv world. It stuck on this: These are the packages that would be merged, in order: Calculating dependencies / !!! Problem resolving dependencies for kde-frameworks/ki18n ... done! !!! The ebuild selected to satisfy "ki18n" has unmet requirements. - kde-frameworks/ki18n-5.64.0::gentoo USE="-debug -doc -test" ABI_X86="(64)" PYTHON_SINGLE_TARGET="-python3_6 (-python3_7)" PYTHON_TARGETS="-python3_6 (-python3_7)" The following REQUIRED_USE flag constraints are unsatisfied: exactly-one-of ( python_single_target_python3_6 python_single_target_python3_7 ) The above constraints are a subset of the following complete expression: exactly-one-of ( python_single_target_python3_6 python_single_target_python3_7 ) python_single_target_python3_6? ( python_targets_python3_6 ) python_single_target_python3_7? ( python_targets_python3_7 ) I tried to resolve it in /etc/portage/package.use file as such: kde-frameworks/ki18n python_single_target_python3_6 -python_single_target_python3_7 python_targets_python3_6 -python_targets_python3_7 It didn't cause any effect whatsoever. At this moment, I really don't know what to do. Please help. emerge --info shows: Portage 2.3.79 (python 2.7.16-final-0, default/linux/amd64/17.1/desktop/plasma/systemd, gcc-9.2.0, glibc-2.29-r2, 4.19.86-gentoo x86_64) ================================================================= System uname: Linux-4.19.86-gentoo-x86_64-Intel-R-_Core-TM-_i7-6700_CPU_@_3.40GHz-with-gentoo-2.6 KiB Mem: 16399188 total, 9086116 free KiB Swap: 0 total, 0 free Timestamp of repository gentoo: Wed, 04 Dec 2019 07:30:01 +0000 Head commit of repository gentoo: 673e5829989f28434dead40b513e63a7a2909b7d sh bash 4.4_p23-r1 ld GNU gold (Gentoo 2.32 p2 2.32.0) 1.16 app-shells/bash: 4.4_p23-r1::gentoo dev-java/java-config: 2.2.0-r4::gentoo dev-lang/perl: 5.28.2-r1::gentoo dev-lang/python: 2.7.16::gentoo, 3.5.7::gentoo, 3.6.9::gentoo, 3.7.3::gentoo dev-util/cmake: 3.14.6::gentoo dev-util/pkgconfig: 0.29.2::gentoo sys-apps/baselayout: 2.6-r1::gentoo sys-apps/sandbox: 2.13::gentoo sys-devel/autoconf: 2.13-r1::gentoo, 2.69-r4::gentoo sys-devel/automake: 1.10.3-r3::gentoo, 1.11.6-r3::gentoo, 1.12.6::gentoo, 1.13.4-r2::gentoo, 1.14.1::gentoo, 1.15.1-r2::gentoo, 1.16.1-r1::gentoo sys-devel/binutils: 2.32-r1::gentoo sys-devel/gcc: 9.2.0-r2::gentoo sys-devel/gcc-config: 2.1::gentoo sys-devel/libtool: 2.4.6-r3::gentoo sys-devel/make: 4.2.1-r4::gentoo sys-kernel/linux-headers: 4.19::gentoo (virtual/os-headers) sys-libs/glibc: 2.29-r2::gentoo Repositories: gentoo location: /usr/portage sync-type: rsync sync-uri: rsync://rsync.gentoo.org/gentoo-portage priority: -1000 sync-rsync-verify-jobs: 1 sync-rsync-verify-metamanifest: yes sync-rsync-extra-opts: sync-rsync-verify-max-age: 24 telred location: /var/lib/layman/telred masters: gentoo priority: 50 ACCEPT_KEYWORDS="amd64" ACCEPT_LICENSE="*" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=core2 -O2 -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /etc/stunnel/stunnel.conf /usr/share/config /usr/share/easy-rsa /usr/share/gnupg/qualified.txt /usr/share/maven-bin-3.3/conf /usr/share/maven-bin-3.6/conf /var/lib/hsqldb" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php7.3/ext-active/ /etc/php/cgi-php7.3/ext-active/ /etc/php/cli-php7.3/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c" CXXFLAGS="-march=core2 -O2 -pipe" DISTDIR="/usr/portage/distfiles" ENV_UNSET="DBUS_SESSION_BUS_ADDRESS DISPLAY GOBIN PERL5LIB PERL5OPT PERLPREFIX PERL_CORE PERL_MB_OPT PERL_MM_OPT XAUTHORITY XDG_CACHE_HOME XDG_CONFIG_HOME XDG_DATA_HOME XDG_RUNTIME_DIR" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-docompress binpkg-dostrip binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles ipc-sandbox merge-sync multilib-strict network-sandbox news parallel-fetch pid-sandbox preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr" FFLAGS="-O2 -pipe" GENTOO_MIRRORS="http://distfiles.gentoo.org" LANG="C" LDFLAGS="-Wl,-O1 -Wl,--as-needed" LINGUAS="pl" MAKEOPTS="-j1" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages --exclude=/.git" PORTAGE_TMPDIR="/var/tmp"
You have omitted PYTHON_TARGETS from your emerge --info output, so I can't tell you for sure. python3_6 would be the the default, which you probably have overridden for some reason or another. Fix your make.conf and also check /etc/portage/package.use for python_target* entries that may need cleanup.
Good hint. After all of those years my package.use file is so long that I didn't notice it already has flags specifying older python for ki18n.
