Could not find a cache.

[te9no]

Hello,
I have been using a Nix-based build with zmk-action.
It seems that when running the build via GitHub Actions, the cache is no longer available.

Set up West and Zephyr SDK
Run urob/zmk-actions/setup-sdk@main
Run # Manually default to /home/runner/work/_actions/urob/zmk-actions/main/setup-sdk. This is
Run # Manually compute hash because hashFiles doesn't work outside the workspace
Run nixbuild/nix-quick-install-action@v29
Run /home/runner/work/_actions/nixbuild/nix-quick-install-action/v29/nix-quick-install.sh
Fetching Nix archives from https://github.com/nixbuild/nix-quick-install-action/releases/download/v29/nix-2.24.9-x86_64-linux.tar.zstd
Installing nix-2.24.9
Building /nix/store/39qrdkz6q18hj8vj2rsqmw2kmldbjczj-user-environment.drv...

Run nix-community/cache-nix-action@v5
Searching for a cache with the key "nix-Linux-f26c2b2f2b3534949661adac8e38db8e96112dea64f6ddc33911a48f895512d3".
Warning: Failed to restore: Cache service responded with 422
Could not find a cache.

Searching for a cache using the "restore-prefixes-first-match":
["nix-Linux-"]
Warning: Failed to restore: Cache service responded with 422
Could not find a cache.

Referring to the details in the following page, I modified setup-sdk/action.yml, and caching is now enabled:
actions/setup-node#1275

Before modification:
uses: nix-community/cache-nix-action@v5
After modification:
uses: nix-community/cache-nix-action@v6

I would appreciate it if you could check this when you have time.
Thank you!

[te9no]

This issue has been resolved by this pull request.
Thank you!
#3

[urob]

Thanks for raising the issue, there previously was an issue with my dependabot config. (Apparently, setting directory to / means .github/workflows and not everything in the repo.)