Recently, one of the substituters on my NixOS machine has started failing when I run nix develop. The error message is as follows:
warning: error: unable to download 'https://example-cache.com/realisations/sha256:<hash>!out.doi
HTTP error 500
What I’ve tried (Error persists):
- Upgraded to the latest stable version of Nix (
24.05) - Rolled back to a known working state
- Ran
nix collect garbage - Turned off custom DNS service
What works:
- Simulated in VM (Ubuntu running with Nix) from the same host machine (so network might not be the issue?)
- Removed the failing
substituter(Though this is not an optimal solution)
Has anyone else encountered this issue? Any suggestions on further steps to locate the root cause would be greatly appreciated.