Arch Linux : Pacman Install Returns Error 404

TL;DR: sync package databases with # pacman -Syu
Tried installing subverion using pacman on an arch linux box but got error 404. Tried installing sqlite and still got error 404.

Seemed like a pacman issue because these are widely used packages. So, I tried updating packages databases via # pacman -Syu

Selected to not replace libsystemd with systemd-libs. (as per Ron, one should not automatically update via # pacman -Syy)

Looks like that's it! Packages got successfully installed after that.