I run systemsettings5 as a normal user. When I click “Global Theme”, it says
’ Error loading plugin “kcm_lookandfeel” “The shared library was not found.” ’
And there are duplicate item ，as follow
How to fix it？
Help，please。
same with me:
systemsettings5
kf5.kactivity.stat: [Error at ResultSetPrivate::initQuery]: QSqlError("1", "Unable to execute statement", "no such column: rl.initiatingAgent")
kf5.kactivity.stat: [Error at ResultSetPrivate::initQuery]: QSqlError("1", "Unable to execute statement", "no such column: rl.initiatingAgent")
org.kde.kcoreaddons: Error loading plugin "kcm_lookandfeel" "The shared library was not found."
Plugin search paths are ("/run/wrappers/lib/qt-5.12.7/plugins", "/home/guido/.local/share/flatpak/exports/lib/qt-5.12.7/plugins", "/var/lib/flatpak/exports/lib/qt-5.12.7/plugins", "/home/guido/.nix-profile/lib/qt-5.12.7/plugins", "/etc/profiles/per-user/guido/lib/qt-5.12.7/plugins", "/nix/var/nix/profiles/default/lib/qt-5.12.7/plugins", "/run/current-system/sw/lib/qt-5.12.7/plugins", "/nix/store/siy72icsmhmsh4xsb06jsslkx2vlmysn-systemsettings-5.17.5-bin/lib/qt-5.12.7/plugins", "/nix/store/hh2b12nz5p104pg6n7xyj787ymvm2lg7-plasma-workspace-5.17.5/lib/qt-5.12.7/plugins", "/nix/store/rx6ffal7hx8i6w3wdrzqnz5cjs0w5hrn-qtlocation-5.12.7-bin/lib/qt-5.12.7/plugins", "/nix/store/qp8xkxdj43jdzjyfjx5hcm4zayn1mvly-libkscreen-5.17.5/lib/qt-5.12.7/plugins", "/nix/store/6pd4d2siawcch8xzwnznvhhs5dhgqhf3-kwin-5.17.5-bin/lib/qt-5.12.7/plugins", "/nix/store/cwrwpc0xbw8ip17h4zqz1285q2zzrgsc-breeze-qt5-5.17.5-bin/lib/qt-5.12.7/plugins", "/nix/store/nspmdnjxvl5xbvy6jc8cgj8lr7mh5lz0-frameworkintegration-5.66.0-bin/lib/qt-5.12.7/plugins", "/nix/store/553s3pal24rdviiryy42ccqvyz85haxx-qtsensors-5.12.7-bin/lib/qt-5.12.7/plugins", "/nix/store/06vn8wx9s79s661aldfz03y609hnql74-ktexteditor-5.66.0-bin/lib/qt-5.12.7/plugins", "/nix/store/gqkil64ln2w0b1z6ymm2nfbjr4zjpwr4-kscreenlocker-5.17.5/lib/qt-5.12.7/plugins", "/nix/store/cdb5xl8gfan4c67xrzq0vx6z6rni0v25-plasma-framework-5.66.0-bin/lib/qt-5.12.7/plugins", "/nix/store/i8jj2w0kapjw3g48sjc22nzxi7kh17a5-kdelibs4support-5.66.0/lib/qt-5.12.7/plugins", "/nix/store/8ssc66sq90s66002ffmq5wyzagq513fw-kemoticons-5.66.0-bin/lib/qt-5.12.7/plugins", "/nix/store/9p3ivgx825a0g59vfd8nz954sx6qlvwd-kplotting-5.66.0/lib/qt-5.12.7/plugins", "/nix/store/kymb3hhb6lj1jppyc9ia7jlz9p6iqfxy-baloo-5.66.0-bin/lib/qt-5.12.7/plugins", "/nix/store/fjr6cwqq0jz9z2jz5yrr9q6j09hvwqg3-kidletime-5.66.0-bin/lib/qt-5.12.7/plugins", "/nix/store/jypj549b6kxjragh3iyc56a77wichvdi-kfilemetadata-5.66.0-bin/lib/qt-5.12.7/plugins", "/nix/store/7pazpznrrvj2mv3wqmghlci5yi79af28-qtmultimedia-5.12.7-bin/lib/qt-5.12.7/plugins", "/nix/store/mq182ag0lpvkbd49s98h8x3s3b25xaf1-khtml-5.66.0-bin/lib/qt-5.12.7/plugins", "/nix/store/gwq7lppn8a6y4m3vac5341a3aydsbrgl-kio-5.66.0/lib/qt-5.12.7/plugins", "/nix/store/g50lbcfbhvm2ryabgwwabhxk86nby2hl-phonon-4.11.1/lib/qt-5.12.7/plugins", "/nix/store/aslxf6dkvb2sqsjamw4sg8nwc0m9c388-kxmlgui-5.66.0-bin/lib/qt-5.12.7/plugins", "/nix/store/m5jn94q24996p6g6mw4r3avajylxlh55-ktextwidgets-5.66.0-bin/lib/qt-5.12.7/plugins", "/nix/store/ghlnx9a2z3s6wf3mp1cg6wvgx66b0mvw-kcompletion-5.66.0/lib/qt-5.12.7/plugins", "/nix/store/8ljsbgy1z431km80zj4hny37z25m3p9v-sonnet-5.66.0-bin/lib/qt-5.12.7/plugins", "/nix/store/nnfl9apa8b10p3yza111iabw38lwq0z8-kiconthemes-5.66.0-bin/lib/qt-5.12.7/plugins", "/nix/store/xmpsxqdpwb7kps05fxx3k0ga5nnwdczk-kitemviews-5.66.0/lib/qt-5.12.7/plugins", "/nix/store/5zyii66jgb8afzc5z7mhds2hvzljipfb-kglobalaccel-5.66.0-bin/lib/qt-5.12.7/plugins", "/nix/store/g75lpcs83j2lfmnixn3d5sdh7jvci0ms-kwindowsystem-5.66.0/lib/qt-5.12.7/plugins", "/nix/store/p7l2y3qyx3w970wadf6afz6xkyjy453x-kguiaddons-5.66.0/lib/qt-5.12.7/plugins", "/nix/store/lchr35f50r6v1dbbiwd37ch150zgb8ch-kwidgetsaddons-5.66.0/lib/qt-5.12.7/plugins", "/nix/store/gkgs99vwndf0k3ikcb9p25kvxkn84j5h-kauth-5.66.0/lib/qt-5.12.7/plugins", "/nix/store/z4l0ysnb4682rnx9glzn1hhcm4jg8jrw-kconfigwidgets-5.66.0-dev/lib/qt-5.12.7/plugins", "/nix/store/636ngsv66jlxvhlv4ls4w9nvdsqvb1kz-ki18n-5.66.0-bin/lib/qt-5.12.7/plugins", "/nix/store/m4hbrim55y2xvs7kgvhpxnk9qyl8hqld-qtwayland-5.12.7-bin/lib/qt-5.12.7/plugins", "/nix/store/ychvaqza3qhdxfk7xld7hwqvgfbr22z7-qtdeclarative-5.12.7-bin/lib/qt-5.12.7/plugins", "/nix/store/g6kqx0d0ly0cq8zr93k2f8m02k9azljf-qtsvg-5.12.7-bin/lib/qt-5.12.7/plugins", "/nix/store/jqw8wzhxv62lqpk0cl4zbmdga5wpx3xx-qtbase-5.12.7-bin/lib/qt-5.12.7/plugins", "/nix/store/5zv52qsvw6wnws9va9drbcskz9xpd3zl-konsole-19.12.3/lib/qt-5.12.7/plugins", "/nix/store/siy72icsmhmsh4xsb06jsslkx2vlmysn-systemsettings-5.17.5-bin/bin")
The environment variable QT_PLUGIN_PATH might be not correctly set
QQmlEngine::setContextForObject(): Object already has a QQmlContext
file:///nix/store/51zvpf3v5wcrxgz2srnvj6zhlf9c3iqx-kdeclarative-5.66.0-bin/lib/qt-5.12.7/qml/org/kde/kcm/GridView.qml:53: TypeError: Value is null and could not be converted to an object
file:///nix/store/51zvpf3v5wcrxgz2srnvj6zhlf9c3iqx-kdeclarative-5.66.0-bin/lib/qt-5.12.7/qml/org/kde/kcm/GridDelegate.qml:201: ReferenceError: theme is not defined
file:///nix/store/51zvpf3v5wcrxgz2srnvj6zhlf9c3iqx-kdeclarative-5.66.0-bin/lib/qt-5.12.7/qml/org/kde/kcm/GridDelegate.qml:201: ReferenceError: theme is not defined
file:///nix/store/51zvpf3v5wcrxgz2srnvj6zhlf9c3iqx-kdeclarative-5.66.0-bin/lib/qt-5.12.7/qml/org/kde/kcm/GridDelegate.qml:201: ReferenceError: theme is not defined
file:///nix/store/51zvpf3v5wcrxgz2srnvj6zhlf9c3iqx-kdeclarative-5.66.0-bin/lib/qt-5.12.7/qml/org/kde/kcm/GridDelegate.qml: ReferenceError: theme is not defined
file:///nix/store/51zvpf3v5wcrxgz2srnvj6zhlf9c3iqx-kdeclarative-5.66.0-bin/lib/qt-5.12.7/qml/org/kde/kcm/GridDelegate.qml: ReferenceError: theme is not defined
I can’t tell whether the duplicates in naming are real duplicates. Perhaps there are subtle differences when chosen. If I remember correctly I’ve always seen these 5 entries here.
I tried to download a new design but that failed and wasn’t displayed.
I tried to find a package “kcm_lookandfeel”. Unfortunately that wasn’t available.
I run the command “QT_QUICK_CONTROLS_STYLE=plasma systemsettings5” and install a global Theme “WhiteSur-alt” , there is a erro message : " org.kde.knewstuff.core: Command ’ “kpackagetool5 -t Plasma/LookAndFeel -i /tmp/com.github.vinceliuice.WhiteSur-alt.tar.xz” ’ failed with code 4 in terminal.