After teaching on a Windows laptop for more than a month, I switched back to my Linux laptop for development purposes. But of course I needed an update first, so I started Pacman1 to update the system.
sudo pacman -Syu
Unfortunately the update broke with the following error.
error: failed to commit transaction (conflicting files) nss: /usr/lib/p11-kit-trust.so exists in filesystem lib32-nss: /usr/lib32/p11-kit-trust.so exists in filesystem Errors occurred, no packages were upgraded.
After a quick search I figured out that the bug was already identified and a post describing the bug with a fix was posted in the ArchLinux news.
sudo pacman -Syu --overwrite /usr/lib\*/p11-kit-trust.so
With this solution the update worked smoothly and I was able to continue working.