But, I can't test it, it says it's installed, but it's not even listed on widgets when I try to add it.
With the command line there should be meaningful information - error messages etc...
Tools
Code:
:~$ plasmapkg2 --help
Usage: plasmapkg2 [options]
Plasma Package Manager
Options:
-v, --version Displays version information.
-h, --help Displays this help.
--hash <path> Generate a SHA1 hash for the package at <path>
-g, --global For install or remove, operates on packages
installed for all users.
-t, --type <type> The type of package, e.g. theme, wallpaper,
plasmoid, dataengine, runner, layout-template, etc.
-i, --install <path> Install the package at <path>
-s, --show <name> Show information of package <name>
-u, --upgrade <path> Upgrade the package at <path>
-l, --list List installed packages
--list-types List all known package types that can be installed
-r, --remove <name> Remove the package named <name>
-p, --packageroot <path> Absolute path to the package root. If not supplied,
then the standard data directories for this KDE
session will be searched instead.
Example
Downloading: plasma-applet-weather-widget-master.zip
Unpacking the zip file.

Installing.
cd to ../plasma-applet-weather-widget-master/

Running:
Code:
plasmapkg2 -i org.kde.weatherWidget
Output:
Code:
pluginname: "org.kde.weatherWidget"
Generated "/home/oneline/.local/share/plasma/plasmoids//kpluginindex.json" ( 9 plugins)
-- Copying "/home/oneline/.local/share/plasma/plasmoids/org.kde.weatherWidget/metadata.desktop" "/home/oneline/.local/share/kservices5/plasma-applet-org.kde.weatherWidget.desktop"
Copying metadata went ok.
Successfully installed /home/oneline/Weather/plasma-applet-weather-widget-master/org.kde.weatherWidget
=> Everything OK.
Check:
Code:
:~$ plasmapkg2 --list | grep weather
com.librehat.yahooweather
org.kde.weatherWidget
=> OK
Available ?

=> OK
Working ?

=> OK