User/Group exists with different uid/gid

[gafoors]

Error

Error: 
   0: Planner error
   1: Error executing action
   2: Action `create_group` errored
   3: Group `nixbld` existed but had a different gid (30000) than planned (350)

Error:
   0: Planner error
   1: Error executing action
   2: Action `create_users_and_group` errored
   3: Action `create_user` errored
   4: User `_nixbld5` existed but had a different uid (305) than planned (355)

Location:
src/cli/subcommand/install.rs:203

Metadata

key	value
version	0.32.2
os	macos
arch	aarch64

[cole-h]

It seems like you installed Nix with the upstream installer, so you may want to follow their instructions for uninstalling first: https://nix.dev/manual/nix/stable/installation/uninstall.html#macos

Otherwise, there are some arguments you can specify that will allow you to override the nix build group ID and nix build user ID base, that you can discover in the --help output.