kossebau added a comment.
Could not reproduce that error locally, and build.kde.org had also not reported any problems. But given it failed for at least two people and the neon CI (https://build.neon.kde.org/job/xenial_unstable_plasma_plasma-desktop_bin_amd64/528/consoleFull) there might be some other problem hidden somewhere. For what I looked, all generated Make rules also looked fine here (clean build), with expected conditions. `grep DEFINE_NO_PLUGIN . -R` only got me hits for the lookandfeeltool targets, especially ./CMakeFiles/lookandfeeltool_autogen.dir/AutogenInfo.cmake:set(AM_MOC_DEFINITIONS "DEFINE_NO_PLUGIN;KCOREADDONS_LIB;KGUIADDONS_LIB;QT_CORE_LIB;QT_DBUS_LIB;QT_DISABLE_DEPRECATED_BEFORE=0;QT_GUI_LIB;QT_NETWORK_LIB;QT_NO_URL_CAST_FROM_STRING;QT_PRINTSUPPORT_LIB;QT_QML_LIB;QT_QUICKWIDGETS_LIB;QT_QUICK_LIB;QT_WIDGETS_LIB;QT_X11EXTRAS_LIB;QT_XML_LIB;TRANSLATION_DOMAIN=\"kcm_lookandfeel\";_GNU_SOURCE;_LARGEFILE64_SOURCE") By the error reported it seems though the generated kcms/lookandfeel/kcm_lookandfeel_autogen/include/kcm.moc was without the code of the plugin factoy for whatever reason, where it should have it though. No idea why by just looking at the code. Given I have no access to neon builds and also reached frustration level here :) I am now simply proposing D10607 <https://phabricator.kde.org/D10607> as an alternative solution without a preprocessor definition, that should avoid any possible confusion cmake/automoc might have here. REPOSITORY R119 Plasma Desktop REVISION DETAIL https://phabricator.kde.org/D10485 To: kossebau, #freebsd, tcberner, bshah, mart, davidedmundson Cc: davidedmundson, rikmills, plasma-devel, ZrenBot, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, mart