not able to install nix after unistalling on Mac OS seqoia

[AT042024-stack]

I am using this command "curl -L https://nixos.org/nix/install | sh" to instal nix earlier it works fine but when i went to install some package nix was not there so i tried to reinstall but got the error below.

Note : I have followed the steps mentioned already but no luck.

Any help would be great!

---- oh no! --------------------------------------------------------------------
I back up shell profile/rc scripts before I add Nix to them.
I need to back up /etc/bashrc to /etc/bashrc.backup-before-nix,
but the latter already exists.

Here's how to clean up the old backup file:

1. Back up (copy) /etc/bashrc and /etc/bashrc.backup-before-nix
   to another location, just in case.

2. Ensure /etc/bashrc.backup-before-nix does not have anything
   Nix-related in it. If it does, something is probably quite
   wrong. Please open an issue or get in touch immediately.

3. Once you confirm /etc/bashrc is backed up and
   /etc/bashrc.backup-before-nix doesn't mention Nix, run:
   mv /etc/bashrc.backup-before-nix /etc/bashrc

We'd love to help if you need it.

You can open an issue at
https://github.com/NixOS/nix/issues/new?labels=installer&template=installer.md

Or get in touch with the community: https://nixos.org/community
aijazahmad@MacBookAir ~ %

[abathur]

I'd recommend following the full uninstall instructions in the manual before reinstalling it: https://nixos.org/manual/nix/stable/installation/uninstall.html#macos