Hi, it seems that the GNOME File Roller .desktop file is called org.gnome.FileRoller.desktop so the corresponding tap file should be called org.gnome.FileRoller.tap instead of file-roller.tap
The Makefile is supposed to handle it (https://git.xfce.org/thunar-plugins/thunar-archive-plugin/tree/scripts/Makefile.am#n17) but it doesn't actually seem to work.
Nevermind, it was an issue in our own patching, sorry for the noise.
I think it's safe to close, isn't it? If not please reopen.