I was able to rid of the first part of the error (when clicking on Energy Information) by doing this:

Code: Select all

cd /usr/lib/x86_64-linux-gnu/qt5/plugins
sudo ln -s kcms/kcm_energyinfo.so

Apparently if isn't looking one directory lower in kcms. Still get the property errors (upon accessing currentBattery, maybe because this computer is a desktop), and then ends with:

file:///usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/kirigami.2/private/globaltoolbar/BreadcrumbControl.qml:63:21: Unable to assign QQuickItem_QML_102 to Page_QMLTYPE_40
file:///usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/kirigami.2/templates/AbstractApplicationHeader.qml:46:5: Unable to assign QQuickItem_QML_102 to Page_QMLTYPE_40
file:///usr/share/kpackage/kcms/kcm_energyinfo/contents/ui/Graph.qml:64: TypeError: Cannot read property 'x' of undefined

But it's not crashing on my system.

I hereby confirm each and every word of @thunder422.
Yes, when it comes to a single click, the program works ok, a trivial overwhelming developer. I do not use a single click for directory and open file , a single click is the fabrication of windows programmers (abolished very quickly) which desktop and programs behave like html pages.
Now it stays when users find the reason for the developer to fix the program.

Solution, if you set a double click in the system setup, then the program must double-click on the options in the menu and everything works ok. I refrain from the commenting for such a solution in the program, Expected unexpectedly.

For developers to know about it someone needs to file a bug report.

apachelogger wrote:For developers to know about it someone needs to file a bug report.

Those are like 1st order conditions, necessary but not sufficient. They may be asleep at the switch.

apachelogger wrote:For developers to know about it someone needs to file a bug report.

Done, bug submitted: Bug 405373 - KInfoCenter is now following the current Click behavior.

Hi, I executed the command in the terminal but I have not experienced any problem. Only a few warnings.
kinfocenter
Icon theme "papirus" not found.
Invalid Context= "stock" line for icon theme: "/usr/share/icons/ubuntu-mono-dark/stock/16/"
Invalid Context= "stock" line for icon theme: "/usr/share/icons/ubuntu-mono-dark/stock/22/"
Invalid Context= "stock" line for icon theme: "/usr/share/icons/ubuntu-mono-dark/stock/24/"
Invalid Context= "stock" line for icon theme: "/usr/share/icons/ubuntu-mono-dark/stock/32/"
Invalid Context= "stock" line for icon theme: "/usr/share/icons/ubuntu-mono-dark/stock/48/"
Invalid Context= "stock" line for icon theme: "/usr/share/icons/ubuntu-mono-dark/stock/64/"
Invalid Context= "stock" line for icon theme: "/usr/share/icons/ubuntu-mono-dark/stock/128/"
Icon theme "gnome" not found.


Afterwards, when I closed the graphical window many other lines appeared

org.kde.kcoreaddons: Error loading plugin "kcm_energyinfo" "No se ha encontrado la biblioteca compartida."
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
Icon theme "papirus" not found.
Invalid Context= "stock" line for icon theme: "/usr/share/icons/ubuntu-mono-dark/stock/16/"
Invalid Context= "stock" line for icon theme: "/usr/share/icons/ubuntu-mono-dark/stock/22/"
Invalid Context= "stock" line for icon theme: "/usr/share/icons/ubuntu-mono-dark/stock/24/"
Invalid Context= "stock" line for icon theme: "/usr/share/icons/ubuntu-mono-dark/stock/32/"
Invalid Context= "stock" line for icon theme: "/usr/share/icons/ubuntu-mono-dark/stock/48/"
Invalid Context= "stock" line for icon theme: "/usr/share/icons/ubuntu-mono-dark/stock/64/"
Invalid Context= "stock" line for icon theme: "/usr/share/icons/ubuntu-mono-dark/stock/128/"
Icon theme "gnome" not found.
file:///usr/share/kpackage/kcms/kcm_energyinfo/contents/ui/main.qml:460: TypeError: Cannot read property 'serial' of null
file:///usr/share/kpackage/kcms/kcm_energyinfo/contents/ui/main.qml:460: TypeError: Cannot read property 'model' of null
file:///usr/share/kpackage/kcms/kcm_energyinfo/contents/ui/main.qml:460: TypeError: Cannot read property 'vendor' of null
file:///usr/share/kpackage/kcms/kcm_energyinfo/contents/ui/main.qml:460: TypeError: Cannot read property 'temperature' of null
file:///usr/share/kpackage/kcms/kcm_energyinfo/contents/ui/main.qml:460: TypeError: Cannot read property 'powerSupply' of null
file:///usr/share/kpackage/kcms/kcm_energyinfo/contents/ui/main.qml:460: TypeError: Cannot read property 'energyFullDesign' of null
file:///usr/share/kpackage/kcms/kcm_energyinfo/contents/ui/main.qml:460: TypeError: Cannot read property 'energyFull' of null
file:///usr/share/kpackage/kcms/kcm_energyinfo/contents/ui/main.qml:460: TypeError: Cannot read property 'energy' of null
file:///usr/share/kpackage/kcms/kcm_energyinfo/contents/ui/main.qml:460: TypeError: Cannot read property 'capacity' of null
file:///usr/share/kpackage/kcms/kcm_energyinfo/contents/ui/main.qml:460: TypeError: Cannot read property 'voltage' of null
file:///usr/share/kpackage/kcms/kcm_energyinfo/contents/ui/main.qml:460: TypeError: Cannot read property 'energyRate' of null
file:///usr/share/kpackage/kcms/kcm_energyinfo/contents/ui/main.qml:460: TypeError: Cannot read property 'chargeState' of null
file:///usr/share/kpackage/kcms/kcm_energyinfo/contents/ui/main.qml:460: TypeError: Cannot read property 'rechargeable' of null
file:///usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/kirigami.2/private/globaltoolbar/BreadcrumbControl.qml:63:21: Unable to assign QQuickItem_QML_101 to Page_QMLTYPE_40
file:///usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/kirigami.2/private/globaltoolbar/BreadcrumbControl.qml:63:21: Unable to assign QQuickItem_QML_101 to Page_QMLTYPE_40
file:///usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/kirigami.2/templates/AbstractApplicationHeader.qml:46:5: Unable to assign QQuickItem_QML_101 to Page_QMLTYPE_40
file:///usr/share/kpackage/kcms/kcm_energyinfo/contents/ui/Graph.qml:64: TypeError: Cannot read property 'x' of undefined
org.kde.kcoreaddons: Error loading plugin "kcm_fileindexermonitor" "No se ha encontrado la biblioteca compartida."
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
file:///usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/kirigami.2/private/globaltoolbar/BreadcrumbControl.qml:63:21: Unable to assign QQuickItem to Page_QMLTYPE_40
file:///usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/kirigami.2/private/globaltoolbar/BreadcrumbControl.qml:63:21: Unable to assign QQuickItem to Page_QMLTYPE_40
file:///usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/kirigami.2/templates/AbstractApplicationHeader.qml:46:5: Unable to assign QQuickItem to Page_QMLTYPE_40

Hope it help,
jochoa@jochoapc
OS: KDE neon 5.15
Kernel: x86_64 Linux 4.15.0-46-generic
Uptime: 7h 7m
Packages: 2197
Shell: bash 4.4.19
Resolution: 1280x1024
DE: KDE 5.56.0 / Plasma 5.15.3
WM: KWin
WM Theme: Breeze Colours
GTK Theme: Breeze [GTK2/3]
Icon Theme: breeze
Font: Noto Sans Regular
CPU: Intel Pentium Dual E2200 @ 2x 2.203GHz
GPU: Mesa DRI Intel(R) 965G
RAM: 828MiB / 3245MiB

Regards,