Error: file 'nixpkgs/nixos' was not found in the Nix search path (add it using $NIX_PATH or -I)

building Nix...
error: file 'nixpkgs/nixos' was not found in the Nix search path (add it using $NIX_PATH or -I)
error: file 'nixpkgs' was not found in the Nix search path (add it using $NIX_PATH or -I)
error: file 'nixpkgs/nixos/modules/installer/tools/nix-fallback-paths.nix' was not found in the Nix search path (add it using $NIX_PATH or -I)
/tmp/nixos-rebuild.LlCOoq/nix
building the system configuration...
error: file 'nixpkgs/nixos' was not found in the Nix search path (add it using $NIX_PATH or -I)

sudo nix-channel --list

home-manager https://github.com/nix-community/home-manager/archive/release-22.05.tar.gz
nixos https://nixos.org/channels/nixos-22.05
nixpkgs https://nixos.org/channels/nixos-22.05

nix-info -m

error: file 'nixpkgs' was not found in the Nix search path (add it using $NIX_PATH or -I)

       at «string»:1:9:

            1| (import <nixpkgs> {}).stdenv.hostPlatform.system
             |         ^
(use '--show-trace' to show detailed location information)
 - system: `0`
 - host os: `Linux 5.15.79, NixOS, 22.05 (Quokka), 22.05.4321.f10cdcf31dd`
 - multi-user?: `no`
 - sandbox: `yes`
 - version: `nix-env (Nix) 2.8.1`
 - channels(root): `"home-manager-22.05.tar.gz, nixos-22.05, nixpkgs-22.05"`
 - channels(ae): `""`
error: file 'nixpkgs' was not found in the Nix search path (add it using $NIX_PATH or -I)

       at «string»:1:1:

            1| <nixpkgs>
             | ^
 - nixpkgs: `0`

What wrong after rebuild?

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