Nil.to_sym Problem

HI everyone, require some help! cannot figure out this error and how
to fix it!

Showing user/index.html.erb where line #59 raised:

You have a nil object when you didn't expect it!
The error occurred while evaluating nil.to_sym

Extracted source (around line #59):

56: <% end %>
57: </ol>
58:
59: <div id="hub">Blog: <%= link_to "(manage)", posts_path(@blog) %></

60: <div id="hubtwo"><%= render :partial => "user/blog" %></div>
61:
62:

HI everyone, require some help! cannot figure out this error and how
to fix it!

Showing user/index.html.erb where line #59 raised:

At a guess it would seem that @blog is nil

Fred