MSYS2 に tmux を入れる時にlibeventのインストールでerror

依存するlibeventのinstallでerror

MSYS2のshellを起動させてpacmanを使ってtmuxをinstallしようとするとエラーで止まります。

$ pacman -S tmux
resolving dependencies...
looking for conflicting packages...

Packages (2) libevent-2.1.12-2  tmux-3.3.a-1

Total Download Size:   0.53 MiB
Total Installed Size:  1.53 MiB

:: Proceed with installation? [Y/n] Y
:: Retrieving packages...
 libevent-2.1.12-2-x86_64                                               164.3 KiB   113 KiB/s 00:01 [#########################################################] 100%
 tmux-3.3.a-1-x86_64                                                    380.1 KiB   222 KiB/s 00:02 [#########################################################] 100%
 Total (2/2)                                                            544.4 KiB   309 KiB/s 00:02 [#########################################################] 100%
(2/2) checking keys in keyring                                                                      [#########################################################] 100%
(2/2) checking package integrity                                                                    [#########################################################] 100%
error: libevent: signature from "David Macek <********@gmail.com>" is unknown trust
:: File /var/cache/pacman/pkg/libevent-2.1.12-2-x86_64.pkg.tar.zst is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n] Y
error: failed to commit transaction (invalid or corrupted package)
Errors occurred, no packages were upgraded.

対処法

pacman のdatabaseをsyncするとエラーは出なくなります。以下のようにup to dateとなるように何度か実行します。

$ pacman -Sy
:: Synchronizing package databases...
 clangarm64 is up to date
 mingw32 is up to date
 mingw64 is up to date
 ucrt64 is up to date
 clang32 is up to date
 clang64 is up to date
 msys is up to date

pacman のdatabaseが同期されたらpacman -S tmux でinstallできます。