Undefined method error when adding BIP

Getting an undefined method `customer_segment_path' error.

This works: %tbody

@project.customer_segments.order("id ASC").each do |segment| = f.fields_for :customer_segments, segment do |segment_fields| %tr %td = segment.name

This does not work after I followed the steps and added BIP: %tbody

@project.customer_segments.order("id ASC").each do |segment| = f.fields_for :customer_segments, segment do |segment_fields| %tr %td= best_in_place segment, :name

This is in my index view. Everything looks good in the controller and routes; it works fine when I don't use best_in_place.

Any ideas what I could be doing wrong? I'm new to this so let me know if more info is needed.

bernat / best_in_place