@black3dynamite
Files were removed, but still the same error.
[root@test~]# dnf clean all
38 files removed
[root@test~]# dnf upgrade
Fedora Modular 28 - x86_64 29 MB/s | 159 kB 00:00
Fedora Modular 28 - x86_64 - Updates 50 MB/s | 1.5 MB 00:00
Fedora 28 - x86_64 - Updates 59 MB/s | 30 MB 00:00
Fedora 28 - x86_64 62 MB/s | 60 MB 00:00
ZeroTier, Inc. RPM Release Repository 21 kB/s | 1.5 kB 00:00
Last metadata expiration check: 0:00:00 ago on Tue 14 May 2019 03:42:02 PM UTC.
Error:
Problem: The operation would result in removing the following protected packages: systemd-udev
[root@test~]#