Pacman like many other package managers tries to minimize network queries, to do this you download a manifest of every package available and its installation instructions. -Sy downloads the latest manifest from all of your pacman repos, -u installs the packages whose “version” field changed between the old and new manifests.
These error messages show that the domain name the manifest had for your package was unavailable, this is why you should check for updates.
For your education:
Pacman like many other package managers tries to minimize network queries, to do this you download a manifest of every package available and its installation instructions.
-Sydownloads the latest manifest from all of your pacman repos,-uinstalls the packages whose “version” field changed between the old and new manifests.These error messages show that the domain name the manifest had for your package was unavailable, this is why you should check for updates.