### Author:  [@waffle8946](https://discourse.nixos.org/u/waffle8946)
#### Post date: [February 27, 2025, 1:36am UTC](https://discourse.nixos.org/t/nix-darwin-not-rebuilding-error-looking-up-directory-object-not-found/60927/2 "2025-02-27T01:36:12Z")
>
>
> \*\*Describe the bug\*\*
>
> Adding a \`git+file:\` input to a flake which refers to a …repository which was cloned shallowly results in an error of the form:
> \`\`\`
> error:
> … while updating the lock file of flake 'git+file:///path/to/flake'
>
> … while updating the flake input 'nixpkgs'
>
> … while fetching the input 'git+file:///tmp/nixpkgs?shallow=1'
>
> error: getting parent of Git commit '9fe5cee74762d8687c11151e2dfb88c77ac0b5d4': object not found - no match for id (2e7eed72914de2d0d4d38e4d545ca26702dba818)
> \`\`\`
> In Nix 2.19.3 and before it works correctly.
>
> \*\*Steps To Reproduce\*\*
>
> 1. Shallow-clone a git repository, e.g. \`git clone https://github.com/NixOS/nixpkgs --depth=1 /tmp/nixpkgs\`.
> 2. Make a flake that uses that repository as an input, with or without \`?shallow=1\`, e.g.:
> \`\`\`nix
> {
> inputs.nixpkgs.url = "git+file:///tmp/nixpkgs";
> outputs = { self, nixpkgs }: { };
> }
> \`\`\`
> 3. Run \`nix flake update\` in that flake directory
>
> \*\*Expected behavior\*\* — Behavior on Nix 2.9.2:
>
> The flake updates and locks successfully, outputting \`Added input 'nixpkgs': git+file:///tmp/nixpkgs?ref…\` (etc)
>
> \*\*\`nix-env --version\` output\*\*
> \`nix-env (Nix) 2.19.0pre20231031\_ee36a44\`
>
> \*\*Additional context\*\*
>
> Bisect points to ee36a44bf272c8cca62a2ce96a017a8150c4d35b from #9240.
>
> \*\*Priorities\*\*
>
> Add :+1: to \[issues you find important\](https://github.com/NixOS/nix/issues?q=is%3Aissue+is%3Aopen+sort%3Areactions-%2B1-desc).
Seems similar, you may be able to fix this by upgrading your nix version.
---
### Author:  [@holden-c](https://discourse.nixos.org/u/holden-c)
#### Post date: [February 27, 2025, 2:06am UTC](https://discourse.nixos.org/t/nix-darwin-not-rebuilding-error-looking-up-directory-object-not-found/60927/3 "2025-02-27T02:06:44Z")
Hmm, I’m on 2.24.18, so I don’t think my nix-version is the issue.
Thanks for responding.
---
### Author:  [@waffle8946](https://discourse.nixos.org/u/waffle8946)
#### Post date: [February 27, 2025, 3:14am UTC](https://discourse.nixos.org/t/nix-darwin-not-rebuilding-error-looking-up-directory-object-not-found/60927/4 "2025-02-27T03:14:57Z")
2.24.18 … [doesn’t exist](https://github.com/NixOS/nix/tags)?
Nix has been an absolute shitshow this year, I would try with 2.18.8, 2.24.11 (not 2.24.12, since that had some regressions related to fetching flake inputs), 2.26.2, or even lix, see which one of those works.
Due to all the recent regressions I’m 99% sure it’s the nix version, especially since it works on one machine but not another.
---
### Author:  [@holden-c](https://discourse.nixos.org/u/holden-c)
#### Post date: [February 27, 2025, 7:55am UTC](https://discourse.nixos.org/t/nix-darwin-not-rebuilding-error-looking-up-directory-object-not-found/60927/5 "2025-02-27T07:55:24Z")
Sorry, 2.24.12!
Okay, thank you, I will try 2.24.11. Thanks for your help.
---
### Author:  [@holden-c](https://discourse.nixos.org/u/holden-c)
#### Post date: [February 27, 2025, 8:32am UTC](https://discourse.nixos.org/t/nix-darwin-not-rebuilding-error-looking-up-directory-object-not-found/60927/6 "2025-02-27T08:32:02Z")
I’ve tried with both 2-24-11 and 2-18-8.
I installed them with `nix-env -iA`, because I can’t rebuild my flake at the moment.
I get:
```shell
❯ nix --version
nix (Nix) 2.18.8
```
But the same issue persists when I try to rebuild.
EDIT: tried 2.23.4, too, the version on my NixOS machine.
---
### Author:  [@holden-c](https://discourse.nixos.org/u/holden-c)
#### Post date: [February 28, 2025, 11:34pm UTC](https://discourse.nixos.org/t/nix-darwin-not-rebuilding-error-looking-up-directory-object-not-found/60927/7 "2025-02-28T23:34:12Z")
For what it’s worth, I never discovered the issue, I tried numerous nix versions. In the end I had to fully install nix and start from scratch. Nix.
---
### Author:  [@waffle8946](https://discourse.nixos.org/u/waffle8946)
#### Post date: [March 1, 2025, 3:00am UTC](https://discourse.nixos.org/t/nix-darwin-not-rebuilding-error-looking-up-directory-object-not-found/60927/8 "2025-03-01T03:00:18Z")
> [@holden-c](#):
>
> I installed them with `nix-env -iA`,
Definitely don’t use `nix-env`… `nix-shell -p` or `nix shell` would’ve been better.
> [@holden-c](#):
>
> In the end I had to fully install nix and start from scratch. Nix.
I mean… software has bugs sometimes, that’s unavoidable with any software. Though I forgot to mention, deleting `~/.cache/nix` may have helped if it was some bug that resulted in a broken cache. In any case, good thing you were able to resolve it.
---
### Author:  [@holden-c](https://discourse.nixos.org/u/holden-c)
#### Post date: [March 1, 2025, 10:32am UTC](https://discourse.nixos.org/t/nix-darwin-not-rebuilding-error-looking-up-directory-object-not-found/60927/9 "2025-03-01T10:32:54Z")
> deleting `~/.cache/nix`
Why didn’t I do that!? Thanks for the advice.
---
### Author:  [@ElNixOsMasHermoso](https://discourse.nixos.org/u/ElNixOsMasHermoso)
#### Post date: [December 12, 2025, 9:12pm UTC](https://discourse.nixos.org/t/nix-darwin-not-rebuilding-error-looking-up-directory-object-not-found/60927/10 "2025-12-12T21:12:37Z")
I ran into the same issue and deleted the cache resolved it! TY