I'm seeing a number of people confused by this message, usually followed by some actual transaction error.
I _think_ this is happening because these packages are in comps but do not exist in the distro. Is this correct? I tried to search for it, but the error message is _very_ common in ... well, people who are asking about it because of what I said. (For example: https://unix.stackexchange.com/q/542877/2511)
I found https://bugzilla.redhat.com/show_bug.cgi?id=1538346 but not much of a general resolution. It does note that one issue is arch-specific packages (which maybe just need "arch=..." in comps?).
I think we should:
1. Have a schedule standarded task to remove any packages listed but non-existent after branch from rawhide. (I assume a Rel-Eng task?)
2. Have DNF make this message less scary. Maybe even move down to a debug message and not show it by default — I am not seeing a situation where they're useful to _most_ end-users.
Anything I'm missing?