Recently when I tried to update my Fedora laptop I got the below error message
Error: Loading repository 'fedora' has failed
After some debugging I found out that this is due to a corrupted repo cache, we can easily fix this error by clearing all repo caches by running the below command
sudo dnf clean all
If that doesn’t work, you can run dnf command with debug options to see more details about the error.
dnf update --debuglevel 3