same here but i tried to install xfce
The following packages have unmet dependencies:
parrot-desktop-xfce : Depends: xfce4-screensaver but it is not installable
Recommends: thunar-archive-plugin but it is not going to be installed
Recommends: mugshot but it is not going to be installed
Recommends: menulibre but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
i tried many solutions in google but un work