Still having the same issues that a lot of KDE stuff won’t open after the update. I still cannot open my application dashboard, add widgets, show alternatives, and Kate won’t start either.
Trying to launch Kate from the terminal returns:
$ kate
kate: symbol lookup error: /usr/lib/libKF5TextEditor.so.5: undefined symbol: _ZN9KLineEdit16returnKeyPressedERK7QString
I have seen and tested the workaround proffered here:
In some rare cases you may face the following error on your KDE Plasma Desktop:
usr/lib/libKF5KIOCore.so.5: undefined symbol: _ZN4KJob14percentChangedEPS_mNS_14QPrivateSignalE.wget https://archive.archlinux.org/packages/k/kio/kio-5.79.0-1-x86_64.pkg.tar.zst sudo pacman -U kio-5.79.0-1-x86_64.pkg.tar.zst echo "IgnorePkg = kio" | sudo tee -a /etc/pacman.conf
kio has successfully been downgraded to v. 5.79, along with replacing the *git version of it with the non-git version.
$ pacman -Q kio
warning: config file /etc/pacman.conf, line 100: directive 'IgnorePkg' in section 'multilib' not recognised.
kio 5.79.0-1
In hopes of finding a solution, I have read through this thread: Kate don’t start after last update and attempted the solution offered there—which turned out to just be the workaround described above, except for also resolving dependency conflicts—but to no avail. I still receive the above-mentioned error when attempting to start Kate and my application dashboard still won’t open.
Trying to see what the application dashboard itself has to say, I (re-)started the plasmashell from the terminal using killall plasmashell; kstart5 plasmashell. Once I did, I received an output every time I clicked the icon for the application launcher/application dashboard:
file:///usr/share/plasma/plasmoids/org.kde.plasma.kicker/contents/ui/CompactRepresentation.qml:115: TypeError: Cannot call method 'toggle' of null
After a few clicks, it changed to:
file://usr/share/plasma/plasmoids/org.kde.plasma.kicker/contents/ui/CompactRepresentation.qml:115: TypeError: Cannot read property 'toggle' of null
“Show Alternatives…” returns:
"file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/explorer/AppletAlternatives.qml"
"Error loading QML file.\n27: plugin cannot be loaded for module \"org.kde.plasma.private.shell\": Cannot load library /usr/lib/qt/qml/org/kde/plasma/private/shell/libplasmashellprivateplugin.so: (/usr/lib/libKF5TextEditor.so.5: undefined symbol: _ZN9KLineEdit16returnKeyPressedERK7QString)\n"
Alternatives UI does not inherit from Dialog
“Add Widgets…” returns:
file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/explorer/WidgetExplorer.qml:32:1: plugin cannot be loaded for module "org.kde.plasma.private.shell": Cannot load library /usr/lib/qt/qml/org/kde/plasma/private/shell/libplasmashellprivateplugin.so: (/usr/lib/libKF5TextEditor.so.5: undefined symbol: _ZN9KLineEdit16returnKeyPressedERK7QString)
(I will post the complete output of killall plasmashell; kstart5 plasmashell to my initial support thread: Application Launcher, Add Widgets, Show Alternatives, and others no longer open after update)
I will also mention, as I did in my support thread, that timeshifting back to a backup from 10th April makes everything work once. However, as soon as I reboot that timeshifted system, I’m back to my current issues.
I’m still lost here … Please help me. 