Unable to see the dependencies of pandoc flake

[disbolog]

I am unable to use the tool with the pandoc development flake.

Here's the error message:

user@host ~/pandoc (main) [1]> nix-tree --derivation '.#'

error: attribute 'pandoc' missing

       at /nix/store/rw4gbrv5y2m59am2m1zc253hv1mbw1fs-source/flake.nix:42:28:

           41|         # Default package.
           42|         packages.default = self'.packages.pandoc;
             |                            ^
           43|
(use '--show-trace' to show detailed location information)
nix-tree: Received ExitFailure 1 when running
Raw command: nix path-info --json --derivation --extra-experimental-features "nix-command flakes" .#

Here's the nix-info output:

 - system: `"x86_64-linux"`
 - host os: `Linux 6.1.26, NixOS, 23.05 (Stoat), 23.05.20230430.da45bf6`
 - multi-user?: `no`
 - sandbox: `yes`
 - version: `nix-env (Nix) 2.13.3`
 - channels(root): `""`
 - nixpkgs: `not found`

And here are the steps to reproduce:

git clone https://github.com/jgm/pandoc
cd pandoc
nix-tree --derivation '.#'

To mention it, this is something I try in order to fix jgm/pandoc#8818. There's also a nixpkgs update request for pandoc: NixOS/nixpkgs#221165

[utdemir]

I think this is an issue on the pandoc side (your linked issue), if the Nix evaluation errors out, there's nothing nix-tree can do.

I'm closing this issue, but please reopen it if the issue persist after the upstream issue is fixed! :)