NoMethodError in Users#new

Showing /opt/e-showcase/app/views/users/new.html.erb where line #8 raised:

undefined method `error_messages' for #<ActionView::Helpers::FormBuilder:0x00007fd76ca38c98>
Extracted source (around line #8):
6
7
8
9
10
11
              
<% form_for(@user) do |f| %>
<%= f.error_messages %>
<%= render :partial => "form", :locals => { :f => f } %>

Rails.root: /opt/e-showcase

Application Trace | Framework Trace | Full Trace

Request

Parameters:

None

Response

Headers:

None