Ask questionsattribute 'nixpkgs' in selection path 'nixpkgs.hello' not found
Try running the following with Nix 2.0:
$ NIX_PATH=/nix/var/nix/profiles/per-user/root/channels nix run nixpkgs.hello error: attribute 'nixpkgs' in selection path 'nixpkgs.hello' not found
This is different than how previous version of Nix worked.
Oddly settings 'nixpkgs' to anything in NIX_PATH (even something that doesn't exist) will fix this issue:
NIX_PATH='nixpkgs=asdf:/nix/var/nix/profiles/per-user/root/channels' nix run nixpkgs.hello
Answer questions teozkr
Oh, weird. 2.3.1 made it work fine for me after removing the workaround.