root@lynx:/usr/local/portage/media-gfx/graphviz(94)# emerge -pv qt-creator These are the packages that would be merged, in order: Calculating dependencies... done! [ebuild UD ] dev-qt/qtcore-5.6.1:5/5.6::gentoo [5.7.0:5/5.7::gentoo] USE="icu systemd -debug {-test}" 0 KiB [ebuild UD ] dev-qt/qtdbus-5.6.1:5/5.6::gentoo [5.7.0:5/5.7::gentoo] USE="-debug {-test}" 0 KiB [ebuild UD ] dev-qt/qtxml-5.6.1:5/5.6::gentoo [5.7.0:5/5.7::gentoo] USE="-debug {-test}" 0 KiB [ebuild UD ] dev-qt/qtnetwork-5.6.1:5/5.6::gentoo [5.7.0:5/5.7::gentoo] USE="ssl -bindist -connman -debug -libproxy -networkmanager {-test}" 0 KiB [ebuild UD ] dev-qt/qttest-5.6.1:5/5.6::gentoo [5.7.0:5/5.7::gentoo] USE="-debug {-test}" 0 KiB [ebuild UD ] dev-qt/qtxmlpatterns-5.6.1:5/5.6::gentoo [5.7.0:5/5.7::gentoo] USE="-debug {-test}" 0 KiB [ebuild N ] dev-qt/qdoc-5.6.1:5/5.6::gentoo USE="-debug {-test}" 0 KiB [ebuild UD ] dev-qt/qtgui-5.6.1:5/5.6::gentoo [5.7.0:5/5.7::gentoo] USE="accessibility dbus egl evdev gif jpeg png udev xcb -debug -eglfs -gles2 -gtkstyle% -ibus -libinput {-test} -tslib -tuio (-gtk%*)" 0 KiB [ebuild UD ] dev-qt/qtwidgets-5.6.1:5/5.6::gentoo [5.7.0:5/5.7::gentoo] USE="png xcb -debug -gles2 -gtkstyle% {-test}" 0 KiB [ebuild UD ] dev-qt/qtdeclarative-5.6.1-r1:5/5.6::gentoo [5.7.0:5/5.7::gentoo] USE="jit widgets xml -debug -gles2 -localstorage {-test}" 0 KiB [ebuild UD ] dev-qt/linguist-tools-5.6.1:5/5.6::gentoo [5.7.0:5/5.7::gentoo] USE="qml -debug {-test}" 0 KiB [ebuild NS ] dev-qt/qttranslations-5.6.1:5/5.6::gentoo [4.8.7:4::gentoo] USE="-debug {-test}" 0 KiB [ebuild N ] dev-qt/qt-creator-4.0.3::gentoo USE="autotools cmake doc git mercurial python subversion systemd valgrind webkit -android -baremetal -bazaar -clangcodemodel -clangstaticanalyzer -clearcase -cvs -glsl -ios -perforce -qbs -qnx {-test} -webengine -winrt" LINGUAS="de fr ru -cs -ja -pl -sl -uk -zh_CN -zh_TW" 0 KiB Total: 13 packages (10 downgrades, 2 new, 1 in new slot), Size of downloads: 0 KiB !!! Multiple package instances within a single package slot have been pulled !!! into the dependency graph, resulting in a slot conflict: dev-qt/qtcore:5 (dev-qt/qtcore-5.7.0:5/5.7::gentoo, installed) pulled in by >=dev-qt/qtcore-5.6.1:5/5.7= required by (kde-plasma/kwin-5.7.3:5/5::gentoo, installed) ^^^^^^^ ~dev-qt/qtcore-5.7.0 required by (dev-qt/qtpositioning-5.7.0:5/5.7::gentoo, installed) ^ ^^^^^ (and 26 more with the same problems) (dev-qt/qtcore-5.6.1:5/5.6::gentoo, ebuild scheduled for merge) pulled in by ~dev-qt/qtcore-5.6.1 required by (dev-qt/qtgui-5.6.1:5/5.6::gentoo, ebuild scheduled for merge) ^ ^^^^^ (and 10 more with the same problem) dev-qt/qtdeclarative:5 (dev-qt/qtdeclarative-5.7.0:5/5.7::gentoo, installed) pulled in by
You probably forgot to unmask dev-qt/qdoc-5.7.0 and/or dev-qt/qttranslations-5.7.0.
(In reply to Arfrever Frehtes Taifersar Arahesis from comment #1) > You probably forgot to unmask dev-qt/qdoc-5.7.0 and/or > dev-qt/qttranslations-5.7.0. Thanks very much Arfrever Frehtes Taifersar Arahesis for your hint. After unmasking qdoc-5.7.0 and qttranslations-5.7.0 I could emerge again qt-creator-4.0.3.