error: … while calling the 'derivationStrict' builtin at «nix-internal»/derivation-internal.nix:37:12: 36| 37| strict = derivationStrict drvAttrs; | ^ 38| … while evaluating derivation 'nix-unit-check' whose name attribute is located at «https://releases.nixos.org/nixpkgs/nixpkgs-26.11pre1015397.173d0ad7a974/nixexprs.tar.xz?narHash=sha256-hCafbexZ0iZ/7QYkKWxCxviTU%2Bc0PDhkieiUVVPCHtY%3D»/pkgs/stdenv/generic/make-derivation.nix:651:11 … while evaluating attribute 'key' of derivation 'nix-unit-check' at «github:nix-community/nix-unit/21a5496ae32b16b73601ef835b9f6497b19024dc?narHash=sha256-eXyZw2ddCKT5xMY8SDnV6lkr61zvSc7CNJeJSAjKqN4%3D»/lib/modules/flake/system.nix:41:19: 40| # To be written to $out by the builder 41| inherit key; | ^ 42| buildInputs = old.buildInputs or [ ] ++ [ pkgs.cacert ]; (stack trace truncated; use '--show-trace' to show the full, detailed trace) error: attribute 'nixComponents_2_35' missing at «github:nix-community/nix-unit/21a5496ae32b16b73601ef835b9f6497b19024dc?narHash=sha256-eXyZw2ddCKT5xMY8SDnV6lkr61zvSc7CNJeJSAjKqN4%3D»/flake.nix:35:29: 34| nix-unit = pkgs.callPackage ./default.nix { 35| nixComponents = pkgs.nixVersions.nixComponents_2_35; | ^ 36| }; Did you mean one of nixComponents_2_30, nixComponents_2_31, nixComponents_2_32, nixComponents_2_33 or nixComponents_2_34?