libfmt.so.10.0.0 don't fit waybar: error while loading shared libraries: libfmt.so.9: cannot open shared object file: No such file or directory

[baozitao]

waybar: error while loading shared libraries: libfmt.so.9: cannot open shared object file: No such file or directory

becouse of
find /usr/lib/ -name 'libfmt.so*'
/usr/lib/libfmt.so.10
/usr/lib/libfmt.so.10.0.0
/usr/lib/libfmt.so

new libfmt update version

[elotulapka]

after downgrading spdlog to 1.11.0-2 and fmt to 9.1.0-4 i've managed to launch waybar. it is a temporary solution

[bakicelebi]

Same issue

[KyrillGobber]

after downgrading spdlog to 1.11.0-2 and fmt to 9.1.0-4 i've managed to launch waybar. it is a temporary solution

Just did this as well. If anyone else doesn't know how:
sudo pacman -U /var/cache/pacman/pkg/spdlog-1.11.0-2-x86_64.pkg.tar.zst /var/cache/pacman/pkg/fmt-9.1.0-4-x86_64.pkg.tar.zst

But really, this is just a temporary fix

[manfred3000]

In case you're running Arch Linux and don't have waybar installed from the official repo, you're technically partially upgraded - which is an unsupported state. You'll either have to rebuild your aur (-git) waybar package against fmt 10, or issue pacman -Syu waybar in order to get things sorted and working the way it's supposed to (no need to downgrade anything. Also see already closed issues) ...

[baozitao]

recommend method is sudo pacman ?

[carlos-spicy-wiener]

Made an account just for this, manfred3000 is right, I fixed it on hyprland with the command yay --rebuild waybar-hyprland-git, not sure how it's done with just pacman.

[manfred3000]

recommend method is sudo pacman ?

The recommended way is to not use any pacman wrappers, since they will keep breaking things...
(Personally, I'm using opendoas for privilege elevation)

[joan31]

Same problem here.
For now the only way it is to downgrade fmt and spdlog packages :

sudo pacman -U /var/cache/pacman/pkg/spdlog-1.11.0-2-x86_64.pkg.tar.zst /var/cache/pacman/pkg/fmt-9.1.0-4-x86_64.pkg.tar.zst

[carlos-spicy-wiener]

Same problem here. For now the only way it is to downgrade fmt and spdlog packages :

sudo pacman -U /var/cache/pacman/pkg/spdlog-1.11.0-2-x86_64.pkg.tar.zst /var/cache/pacman/pkg/fmt-9.1.0-4-x86_64.pkg.tar.zst

Or rebuild with fmt10. I never downgraded anything and after running yay --rebuild waybar-hyprland-git it works as usual and should be rebuilt with each update. See manfred3000's comment above.