Undefined Local Variables with Blueprint Error

undefined local variable or method `page_width' for
#<#<Class:0x007fb88bd711f8>:0x007fb88b8b1140>
  (in
/Users/brandonchristie/senior_design/app/assets/stylesheets/joshuaclayton-blueprint-css-9bf9513/lib/blueprint/grid.css.erb)

I am getting this error for "page_width" "column_count" and a few other
variables when trying to run the rails server and access my site on my
localhost. Any idea how to fix this?