Hello.  I would like to use emacs when I run things in R, and it seems that ESS helps with that.  I've been trying to install it, but I get the following error:

An error has occurred while loading `/Users/jessicacisewski/.emacs':

File error: Cannot open load file, ess-site


Per the "README" file, I added '(require 'ess-site)' to my .emacs file so the whole file reads:

(custom-set-variables
  ;; custom-set-variables was added by Custom.
  ;; If you edit it by hand, you could mess it up, so be careful.
  ;; Your init file should contain only one such instance.
  ;; If there is more than one, they won't work right.
 '(TeX-PDF-mode t))
(custom-set-faces
  ;; custom-set-faces was added by Custom.
  ;; If you edit it by hand, you could mess it up, so be careful.
  ;; Your init file should contain only one such instance.
  ;; If there is more than one, they won't work right.
 )

(require 'ess-site)

Here is the background of my environment:
Emacs:  GNU Emacs 22.1.50.1 (i386-apple-darwin8.10.1, Carbon Version 1.6.0)
Mac OS X: Version 10.5.8

This may be a really simple issue to fix, but I am not very familiar with the workings of computers.
Thank you so much for your help!  All the best, Jessi

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