SUMMARY using `kcmshell5 kcm_lookandfeel` , the following console output is produced: `org.kde.knewstuff.core: Using a deprecated location for the knsrc file "lookandfeel.knsrc" - please contact the author of the software which provides this file to get it updated to use the new location` I found this while trying to install new look and feel themes. Using the "Get New Look and Feel Themes...". Themes were saying installed, but werent appearing in the choosing menu, and were disappearing from the "installed" tab when reopening the application. It is an installation error. The following error message is also produced: `org.kde.knewstuff.core: Command failed "kpackagetool5 -t Plasma/LookAndFeel -r /tmp/ELplas.tar.gz"` For various other themes like "Crown Teal" and others. STEPS TO REPRODUCE 1. $ kcmshell5 kcm_lookandfeel 2. Try to install new theme using "get new look and feel themes" from kde settings OBSERVED RESULT Theme not installed EXPECTED RESULT Theme should be installed SOFTWARE/OS VERSIONS Operating System: Arch Linux KDE Plasma Version: 5.15.5 KDE Frameworks Version: 5.58.0 Qt Version: 5.12.3 Kernel Version: 5.1.2-arch1-1-ARCH OS Type: 64-bit
I see similar results on KDE Neon User Edition, Trying to install a Look and Feel package using knewstuff, I get this output when I open the Look and Feel KCM in the terminal: kcmshell5 kcm_lookandfeel org.kde.kcoreaddons: Error loading plugin "kcm_lookandfeel" "The shared library was not found." Plugin search paths are ("/usr/lib/x86_64-linux-gnu/qt5/plugins", "/usr/bin") The environment variable QT_PLUGIN_PATH might be not correctly set <Unknown File>:3:89: Unable to assign [undefined] to double org.kde.knewstuff.core: Using a deprecated location for the knsrc file "lookandfeel.knsrc" - please contact the author of the software which provides this file to get it updated to use the new location QNetworkReplyHttpImplPrivate::_q_startOperation was called more than once QUrl("https://autoconfig.kde.org/ocs/providers.xml") QPixmap::scaled: Pixmap is a null pixmap QPixmap::scaled: Pixmap is a null pixmap QPixmap::scaled: Pixmap is a null pixmap QPixmap::scaled: Pixmap is a null pixmap Many more lines of the above happen, then when I select a theme to install, I get this line: org.kde.knewstuff.core: Command ' "kpackagetool5 -t Plasma/LookAndFeel -i /tmp/Sweet.tar.gz" ' failed with code 4 The installer acts like it is installing the theme, and marks it as installed, but it is not, as there are no files or related directories to be found in ~/.local/share/plasma.
*** Bug 407867 has been marked as a duplicate of this bug. ***
I'm also experiencing this exact same issue. [someuser@main:/nix/store]$ kcmshell5 kcm_lookandfeel org.kde.kcoreaddons: Error loading plugin "kcm_lookandfeel" "The shared library was not found." Plugin search paths are ("/run/wrappers/lib/qt-5.12.5/plugins", "/home/someuser/.nix-profile/lib/qt-5.12.5/plugins", "/etc/profiles/per-user/someuser/lib/qt-5.12.5/plugins", "/nix/var/nix/profiles/default/lib/qt-5.12.5/plugins", "/run/current-system/sw/lib/qt-5.12.5/plugins", "/nix/store/gpdiznl28xam06gg1c8p14b3qkyqc5k9-kde-cli-tools-5.16.5/lib/qt-5.12.5/plugins", "/nix/store/faw0449xxjjcw1j2m7iirsri9nbd4mwq-plasma-workspace-5.16.5/lib/qt-5.12.5/plugins", "/nix/store/m12sns9z9ipydnqid343v43ii8vp5bmr-qtlocation-5.12.5-bin/lib/qt-5.12.5/plugins", "/nix/store/gjgxk2rk6m4fvlm5gig4k03kn3l92j8z-libkscreen-5.16.5/lib/qt-5.12.5/plugins", "/nix/store/nxmnp3yi6qjirg3l1i3d99dz7w679zwr-kwin-5.16.5-bin/lib/qt-5.12.5/plugins", "/nix/store/q14xnasq49j4gcfr12dmca0kib8p59qa-breeze-qt5-5.16.5-bin/lib/qt-5.12.5/plugins", "/nix/store/iqgrci5a2zdikxwa1p8bg8jszxj1sf1f-frameworkintegration-5.62.0-bin/lib/qt-5.12.5/plugins", "/nix/store/v9zhg3nxpiilizphcs2x5jz401hp56zz-qtsensors-5.12.5-bin/lib/qt-5.12.5/plugins", "/nix/store/amm5f2r4r9d9z0yfx31942vrb1ffrj6m-ktexteditor-5.62.0-bin/lib/qt-5.12.5/plugins", "/nix/store/pc1i1cg9d383cgplqvj4bh5avwghfa7i-kscreenlocker-5.16.5/lib/qt-5.12.5/plugins", "/nix/store/08p08saxps432j8n4sg1ya4lzshkm5rg-plasma-framework-5.62.0-bin/lib/qt-5.12.5/plugins", "/nix/store/v410qpdq4zx8zmg0h2i665k0695xj7n1-kdelibs4support-5.62.0/lib/qt-5.12.5/plugins", "/nix/store/19hr0pvx8bmz2v5g1g7sqhsjnilhrx7c-kemoticons-5.62.0-bin/lib/qt-5.12.5/plugins", "/nix/store/zf681i7bin9zryakdi25rspyh650pdd0-kplotting-5.62.0/lib/qt-5.12.5/plugins", "/nix/store/i6zdnmmm2979ljn8y2gmmjvpswxlq9h4-baloo-5.62.0-bin/lib/qt-5.12.5/plugins", "/nix/store/149nrgpppjsd2zbmf23sfq98yjyr1scc-kidletime-5.62.0-bin/lib/qt-5.12.5/plugins", "/nix/store/f9kdv32is1bpd2dq9rbi8dnwn7v1bcq2-kfilemetadata-5.62.0-bin/lib/qt-5.12.5/plugins", "/nix/store/2gighvgicgvhc4a345jiyxqq8yagxic8-qtmultimedia-5.12.5-bin/lib/qt-5.12.5/plugins", "/nix/store/ybpiin7l6x7sfr4675pp3l8br9g5vfs4-kio-5.62.1/lib/qt-5.12.5/plugins", "/nix/store/yh15wc64wql0ngxj2b5wbb0abc6nlrpy-phonon-4.11.1/lib/qt-5.12.5/plugins", "/nix/store/pgc600fmdzsnjsprkpc5h2q9hn0vvwmb-kxmlgui-5.62.0-bin/lib/qt-5.12.5/plugins", "/nix/store/fbjz1rpklzss1f2qlidrhh5bij73by3n-ktextwidgets-5.62.0-bin/lib/qt-5.12.5/plugins", "/nix/store/jk0nswybsmnwadfrvbmk22m09gmic1bc-kcompletion-5.62.0/lib/qt-5.12.5/plugins", "/nix/store/wbjqg1sfbfmzma4rl5lhf8gpv57yhf3x-sonnet-5.62.0-bin/lib/qt-5.12.5/plugins", "/nix/store/y4lhh96is5ffx8qlfwlwlb54j81aaz3c-kiconthemes-5.62.0-bin/lib/qt-5.12.5/plugins", "/nix/store/dnhwgfdbhrrmc0hhhfsvbva68r3252w2-kitemviews-5.62.0/lib/qt-5.12.5/plugins", "/nix/store/5n8n9nq4kp6psjlpi7l8yn14fww5mmpw-kglobalaccel-5.62.0-bin/lib/qt-5.12.5/plugins", "/nix/store/fcsrmhz3f2zz14h9xv78m9zs59qg7bm5-kwindowsystem-5.62.0/lib/qt-5.12.5/plugins", "/nix/store/8ch6z2prfyi4vh38027jhiib9gs1lcpd-kguiaddons-5.62.0/lib/qt-5.12.5/plugins", "/nix/store/rfmz5x74ps63icwlf23wfdgp7kahjdgb-kwidgetsaddons-5.62.0/lib/qt-5.12.5/plugins", "/nix/store/v7ykrnkrzv3c63iws642vfz3wfykplhl-kauth-5.62.0/lib/qt-5.12.5/plugins", "/nix/store/qi919fg01nz8ginirlnikgdz14hd841p-kconfigwidgets-5.62.0-dev/lib/qt-5.12.5/plugins", "/nix/store/2vzsa01nbribq5c40ykn6f7pj2w40h5n-ki18n-5.62.0-bin/lib/qt-5.12.5/plugins", "/nix/store/z2fj1l0izzvvz17sq8gj5f6alc660v20-qtwayland-5.12.5-bin/lib/qt-5.12.5/plugins", "/nix/store/wn89bd30fs19jar3ajgq6y1a90dnp0yr-qtdeclarative-5.12.5-bin/lib/qt-5.12.5/plugins", "/nix/store/bxx9nmgbh2fwgbicsf2zff8248pyxgx8-qtsvg-5.12.5-bin/lib/qt-5.12.5/plugins", "/nix/store/793z3xidrkd412ddidmf2n6ssq37q9jc-qtbase-5.12.5-bin/lib/qt-5.12.5/plugins", "/nix/store/1wgnjxj4qqisdc42bqbz1x5474pfqgl9-konsole-19.08.2/lib/qt-5.12.5/plugins", "/nix/store/gpdiznl28xam06gg1c8p14b3qkyqc5k9-kde-cli-tools-5.16.5/bin") The environment variable QT_PLUGIN_PATH might be not correctly set file:///nix/store/39mnyfb4y46689wjiyghbymks786d9sl-kdeclarative-5.62.0-bin/lib/qt-5.12.5/qml/org/kde/kcm/GridView.qml:53: TypeError: Value is null and could not be converted to an object file:///nix/store/g5vq3q265aby00jlaa13d5mzaqhwivsm-kirigami2-5.62.0/lib/qt-5.12.5/qml/org/kde/kirigami.2/templates/InlineMessage.qml:136: TypeError: Value is undefined and could not be converted to an object org.kde.knewstuff.core: Command ' "kpackagetool5 -t Plasma/LookAndFeel -i /tmp/Aritim-Dark-KDE-master.zip" ' failed with code 4 [someuser@main:/nix/store]$ kpackagetool5 -t Plasma/LookAndFeel -i /tmp/Aritim-Dark-KDE-master.zip Error: Installation of /tmp/Aritim-Dark-KDE-master.zip failed: Could not install dependency: 'kns://wallpaper.knsrc/api.kde-look.org/1291306' Seems like it could be related to https://forum.kde.org/viewtopic.php?t=138995 SOFTWARE/OS VERSIONS Operating System: NixOS 19.09 KDE Plasma Version: 5.16.5 KDE Frameworks Version: 5.62.0 Kernel Version: 4.19.86 OS Type: 64-bit
Is this still an issue? I tried this out and it works for me.
I can't reproduce with "Crown Teal" and "ELPlas" global themes at least. Operating System: Arch Linux KDE Plasma Version: 5.19.3 KDE Frameworks Version: 5.72.0 Qt Version: 5.15.0
Okay, then this was fixed with https://invent.kde.org/frameworks/knewstuff/-/commit/3f38da8a70d8101d8fda586c28c4c8cd64d68daa. *** This bug has been marked as a duplicate of bug 418466 ***