Error when running the suggested config

[chookity-pokk]

I downloaded the package and put the suggested config in my init and when executing it I got the below error.

Debugger entered--Lisp error: (void-function add-to-hook)
  (add-to-hook 'find-file-hook #'(lambda nil (if (and (boundp 'conda-project-env-path) conda-project-env-path) (progn (conda-env-activate-for-buffer)))))
  eval((add-to-hook 'find-file-hook #'(lambda nil (if (and (boundp 'conda-project-env-path) conda-project-env-path) (progn (conda-env-activate-for-buffer))))) nil)
  elisp--eval-last-sexp(nil)
  eval-last-sexp(nil)
  funcall-interactively(eval-last-sexp nil)
  call-interactively(eval-last-sexp nil nil)
  command-execute(eval-last-sexp)

If I remove the add-to-hook then it runs just fine.

OS:
MacOS 13.5.1

Emacs version
29.1