今天运行 pacman -Syu 并发生以下错误：
(627/627) checking package integrity \[########################################################################################\] 100%
error: libspeechd: signature from "Alexander Epaneshnikov <[[email protected]](mailto:[email protected])\>" is unknown trust
:: File /var/cache/pacman/pkg/libspeechd-0.11.1-2-x86\_64.pkg.tar.zst is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? \[Y/n\] n
error: mujs: signature from "Daniel Bermond <[[email protected]](mailto:[email protected])\>" is marginal trust
:: File /var/cache/pacman/pkg/mujs-1.2.0-2-x86\_64.pkg.tar.zst is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? \[Y/n\] n
error: speech-dispatcher: signature from "Alexander Epaneshnikov <[[email protected]](mailto:[email protected])\>" is unknown trust
:: File /var/cache/pacman/pkg/speech-dispatcher-0.11.1-2-x86\_64.pkg.tar.zst is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? \[Y/n\] n
error: failed to commit transaction (invalid or corrupted package)
Errors occurred, no packages were upgraded.
\-> error installing repo packages
拱门版本：
5.10.87-1-lts
侏儒德
我可以做什么来解决这个问题？
答案1
先运行pacman -S archlinux-keyring，再运行pacman -Syu