In another system I get this:

 

# dnf upgrade

Problem 1: cannot install the best update candidate for package kajongg-16.12.3-2.fc27.noarch

- nothing provides python3-twisted >= 16.6.0 needed by kajongg-17.12.2-2.fc28.noarch

...

Skipping packages with broken dependencies:

kajongg noarch 17.12.2-2.fc28 fedora 4.7 M

 

Regards,

--

José Abílio