NixFlake doesn't update

Hi there, I’ve been having issues with switching my build with flake. It just stopped working for me and I couldn’t not solve it

Basically running this command does nothing, shows newline and that’s it.

nix-shell -p nixUnstable --command "nix build --experimental-features 'nix-command flakes --show-trace' '.#desktop'"

Any ideas to debug this. Thanks

Is your current nix from nixUnstable or from nixStable? By “does nothing”, did you check perhaps whether a result symlink was created in the directory you ran the command?

My current nix is from nixUnstable, here’s my nix config https://gist.github.com/tami5/83e142a65d32e0690ada4fce6dc544e6.

No, it doesn’t create that directory any more.

It is fixed now, there was an issue with some package failing to build

If you want to see why a package fails to build, you can use nix build --print-build-logs (or -L) which is not document (see this issue).

I’m also wondering why do you use nix-shell if your nix is supposed to be the nix from nixUnstable - why not use nix build directly?