Friendship form promblem

I've been stuck with this problem for quite some time now, I've gone over the video probably 6 times now to now luck... I get the same error message of

test: #new when logged in should display the friend's name. (UserFriendshipControllerTest): ActionView::Template::Error: undefined method `user_friendships_path' for #<#<Class:0x00000101220478>:0x000001013fc210>

In the web-browser the message is displayed as:

NoMethodError in User_friendship#new

Showing /Users/Andre/Documents/RubyProject/treebook/app/views/user_friendship/new.html.erb where line #5 raised:

undefined method `model_name' for NilClass:Class Extracted source (around line #5):

2: <h1><%= @friend.full_name %></h1> 3:
4: <p>Do you really want to friend <%= @friend.full_name %>?</p> 5: <%= form_for @user_friendship, method: :post do |form| %> 6: <div class="form form-actions"> 7: <%= form.hidden_field :friend_id, value: @friend %> 8: <%= submit_tag "Yes, Add Friend", class: 'btn btn-primary' %>

Rails.root: /Users/Andre/Documents/RubyProject/treebook

Application Trace | Framework Trace | Full Trace app/views/user_friendship/new.html.erb:5:in `app_views_user_friendship_new_html_erb__4322220514339960689_2157975680' Request

Parameters:

{"friend_id"=>"@epicdre"} Show session dump

Show env dump

Response

Headers:

None

Not sure what to do...