[Nix-dev] How do I ...

[Pjotr Prins]

Thanks Marc for helping me get config.nix fixed :-). Now I have
another one:

> nix-collect-garbage 
finding garbage collector roots...
computing live paths...
error: path `/nix/store/pbmf37alssdncil52kv29vlck19hnihh-coreutils-6.12' is not valid
0 bytes (0.00 MiB, 0 blocks) freed

Eh. I think I removed that to try stuff. Only problem is - how do I fix it. All Nix actions stop:

> nix-env -f . -i coreutils
replacing old `coreutils-6.12.1'
installing `coreutils-6.12'
error: path `/nix/store/pbmf37alssdncil52kv29vlck19hnihh-coreutils-6.12' is not valid

(gulp)

I know I shouldn't have done that. But is there a way out?

Pj.