cd /home/.gnupg/
mv gpg.conf gpgbake.conf
pacman -S archlinux-keyring && pacman -Syu
如果還是不行，就修改/etc/pacman.d/gnupg/gpg.cpnf修改gpg密鑰的服務器，以下有四個，自己看看那個可以吧。
#keyserver hkp://pool.sks-keyservers.net
##keyserver http://gpt.mit.edu
##keyserver hkp://subkeys.pgp.net
keyserver hkp://keyserver.kjsl.com
# Archive the GNUPG directories
mv $HOME/.gnupg $HOME/.gnupg.bak
sudo mv /root/.gnupg /root/.gnupg.bak
# This one fixed the GNUPG Error
dirmngr </dev/null
# Refresh Keys
pacman-key --init
pacman-key --populate archlinux
pacman-key --refresh-keys