Connect a field with an error

Hi, i have this in a my form for registration user

<% fields_for “user[location_attributes]”, @user.location do
|location_form| %>
<%= location_form.text_field :full_address %>
<% end %>

the location is required.

and so if i submit the form without insert the location the instruction:

<%= error_messages_for :user %>

print: location required.

but in the field there isn’t the div

around the field of the location like the others fields required

how i can connect the error of the location with the field: