PositionSource ignores any plugins, specified in its 'name' property on ArchLinux

This code:

        PositionSource {
            id: positionSource
            updateInterval: 1000
            active: true
            name: "gypsy"
        }

ignores the 'gypsy' plugin, it says to console following output:

Failed to set Geoclue positioning requirements. Geoclue error: org.qtproject.QtDBus.Error.InvalidObjectPath

But, I specify the 'gypsy' plugin instead of 'geoclue'!

The 'libqtposition_gypsy.so" plugin is present in sysyem.