Failed to execute install script

[maeckha]

DE: KDE 5.74.0 / Plasma 5.19.5
OS: Manjaro 20.1.1 Mikah
Kernel: x86_64 Linux 5.4.67-1-MANJARO

I get the above mentioned error every time I try to install this widget through 'Get widgets' -> 'Download new plasma widgets'.

[MurzNN]

Same problem is on Kubuntu 20.10:
KDE Plasma Version: 5.19.5
KDE Frameworks Version: 5.74.0
Qt Version: 5.14.2
Kernel Version: 5.8.0-20-generic

[ismailof]

I'm looking at the "Get widgets" dialog code, and this shouldn't have an install script, as it is a plain plasmoid, but I'm trying to follow the code to see why this is happening.

In the meantime could you try to download the plasmoid from the store and install it with the following command?
kpackagetool5 --install MediaController+_0.2.8.plasmoid

It might show some extra info about the error, or in the best case the installation succeeds.
Thanks!

[MurzNN]

Seems we need to use --upgrade, because of:

$ kpackagetool5 --install MediaController+_0.2.8.plasmoid
Error: Installation of MediaController+_0.2.8.plasmoid failed: ~/.local/share/plasma/plasmoids/org.kde.plasma.mediacontroller_plus already exists

And here is upgrade output:

$ kpackagetool5 --upgrade MediaController+_0.2.8.plasmoid
kf.coreaddons.desktopparser: Unable to find service type for service "Plasma/PopupApplet" listed in "~/.local/share/plasma/plasmoids/minimalclock/metadata.desktop"
kf.package: Generated  "~/.local/share/plasma/plasmoids//kpluginindex.json"  ( 14  plugins)
Upgrading package from file: MediaController+_0.2.8.plasmoid
kf.coreaddons.desktopparser: Unable to find service type for service "Plasma/PopupApplet" listed in "~/.local/share/plasma/plasmoids/minimalclock/metadata.desktop"
kf.package: Generated  "~/.local/share/plasma/plasmoids//kpluginindex.json"  ( 15  plugins)
Successfully upgraded MediaController+_0.2.8.plasmoid

So, excluding wrong service type warnings, it installs successfully. Seems there are something broken in "Get new widgets" side, or maybe it don't like those warnings?

[ismailof]

Thanks! It seems it served both purposes.

I'm suspecting of the dialog not detecting correctly that the plasmoid was already installed, and maybe it's fixed on later releases.
I'll investigate and let you know

[maeckha]

Hi @MurzNN , I tried the same thing and got the same output. But I still am not able to see the widget as an option in the 'New Widgets' panel. Did it work for you?