With the new release of Antergos, the installation of the Nvidia drivers is changed.
I can install these drivers I follow these steps ( I have quoted the new commands needed):
pacman - R xf86-video-nouveau
"pacman - R lib32-nouveau-dri"
pacman -R nouveau-dri
pacman -S linux-headers
pacman -S nvidia nvidia-utils
after the reboot:
This allows me to install the drivers, but some software that need lib32, like Acroread,Sopcast and Veetle don’t install.