Trouble installing Powerpill in Arch template and curious about blacklisted package list for update

[memetic....@gmail.com]

so I set up my pacman.conf as suggested in the documentation and I also initialized my keyring but I keep getting the following error:

error: xyne-x86_64: signature from "Xyne. (key #3) <xy...@archlinux.ca>" is invalid
error: database 'xyne-x86_64' is not valid (invalid or corrupted database (PGP signature))

my clock is synced so that's not the issue, and I tried importing his new key listed on the aur page of powerpill, yet for some reason the problem persist. any Ideas

on an unrelated note does anyone have a list of packages/groups I should list in my pacman.conf in order to actually update my system again?

[memetic....@gmail.com]

So I tried to do it with a relatively fresh arch install (the above error was from a template I installed over 6 months ago, whereas this one is only a few weeks old), and I got the same error after changing my pacman.conf and updating via ```sudo pacman -Syyu```. still the same error. Has anyone else had a similar issue? how did you fix it?

[memetic....@gmail.com]

On Tuesday, July 11, 2017 at 5:29:38 PM UTC, memetic....@gmail.com wrote:

To others who have a similar issue to number 2, I found this post:
https://groups.google.com/forum/#!msg/qubes-users/5EJxdzgeRLY/rI5d

which list some of the packages to be ignored. while I'm still getting a few warning messages, it's actually allowing me to upgrade my older arch install

[memetic....@gmail.com]

Edit: after the update finished I got this error:

ca-certificates-utils: /etc/ssl/certs/ca-certificates.crt exists in filesystem
Errors occurred, no packages were upgraded.

so I guess it didn't fix it. back to square 1(.5?)

[memetic....@gmail.com]

edit:
fixed with advice from here:
https://bbs.archlinux.org/viewtopic.php?id=223895