jgrulich added a comment.
I think I found out why. In documentation [1] all methods starts with capital letter, which in our case they don't. This was obviously working before when I was doing everything manually. Still my question remains about registering additional objects in Inbit.cpp. [1] - http://flatpak.org/xdg-desktop-portal/portal-docs.html REPOSITORY R838 Flatpak Support: KDE Portal for XDG Desktop REVISION DETAIL https://phabricator.kde.org/D6145 To: davidedmundson, #plasma, jgrulich Cc: apol, plasma-devel, ZrenBot, spstarr, progwolff, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, mart, lukas