Description of problem: gnome-desktop-sharp needs to be brought into F9, without it both MD and mono-tools are not available (this is part of bringing the F9 stack inline with rawhide to enable a fuller stack to be available)
hello Paul, There's an opened bug on that already. I'll merge your comment and make g-d-s available for F-9.
*** This bug has been marked as a duplicate of bug 460086 ***