problem getting railfrog 2.3.3 working

[mike_255]

hello,

i cloned dimitry's version of railfrog earlier today. Initially i
tried to perform the database migrate in the railfrog with engines
folder and i kept getting an error message saying because there is no
acts as nested directory here. I then did the migrate in the railfrog
2.3.3 directory and this seemed to work until i got to the admin page.
The page didnt load up as there was a problem loading the sidebar.

24: <div>
25: <h2><%= t(:folders) %></h2>
26: <%= create_mapping_tree(@site_mappings) %>
27: </div>
28:
29: </div><!-- //mainNav -->

error around line 26

when the nav bar is commented out the rest of hte page loads.
i must be doing something wrong here and would greatly appreciate any
guidance here.

regards,
mike