Emacs 24.4 cannot load Ergoemacs [Mac OS]

Question

I have problem with emacs and ergoemacs on Mac OS.

What I've done:

1. I installed latest version of emacs (24.4):

sudo port install emacs

2. Downloaded ergoemacs from http://ergoemacs.org/ and put it in folder ~/.emacs.d

3. Added to file ~/.emacs:

(setenv "ERGOEMACS_KEYBOARD_LAYOUT" "us") ; US
(load-file "~/.emacs.d/ergoemacs/site-lisp/site-start.el")

When I tried start emacs, I received an error:

Warning (initialization): An error occurred while loading `/Users/%user_name%/.emacs':

Symbol's function definition is void: tool-bar-mode

To ensure normal operation, you should investigate and remove the
cause of the error in your initialization file.  Start Emacs with
the `--debug-init' option to view a complete error backtrace.

With debug mode:

Debugger entered--Lisp error: (void-function tool-bar-mode)
  (tool-bar-mode 0)
  eval-buffer(#<buffer  *load*-795277> nil "/Users/%user_name%/.emacs.d/ergoemacs/ergoemacs/init.el" nil t)  ; Reading at buffer position 316
  load-with-code-conversion("/Users/%user_name%/.emacs.d/ergoemacs/ergoemacs/init.el" "/Users/%user_name%/.emacs.d/ergoemacs/ergoemacs/init.el" nil nil)
  load("/Users/%user_name%/.emacs.d/ergoemacs/site-lisp/../ergoemacs/init")
  eval-buffer(#<buffer  *load*-459001> nil "/Users/%user_name%/.emacs.d/ergoemacs/site-lisp/site-start.el" nil t)  ; Reading at buffer position 1432
  load-with-code-conversion("/Users/%user_name%/.emacs.d/ergoemacs/site-lisp/site-start.el" "/Users/%user_name%/.emacs.d/ergoemacs/site-lisp/site-start.el$
  load("/Users/%user_name%/.emacs.d/ergoemacs/site-lisp/site-start.el" nil nil t)
  load-file("~/.emacs.d/ergoemacs/site-lisp/site-start.el")
  eval-buffer(#<buffer  *load*> nil "/Users/%user_name%/.emacs" nil t)  ; Reading at buffer position 106
  load-with-code-conversion("/Users/%user_name%/.emacs" "/Users/%user_name%/.emacs" t t)
  load("~/.emacs" t t)
  #[0 "^H\205\262^@     \306=\203^Q^@\307^H\310Q\202;^@ \311=\204^^^@\307^H\312Q\202;^@\313\307\314\315#\203*^@\316\202;^@\313\307\314\317#\203:^@\320$
  command-line()
  normal-top-level()