undefined method `any?' for nil:NilClass for <% if #users.any? %> - ruby

Question

I am following the Micheal Hartl Ruby on Rails tutorial. In the 12 chapter, I am getting this error.
I am trying to display the following and the followers, but I am not able to.
Following are the codes:
show.html.erb
<% provide(:title, #title) %>
<div class="row">
<aside class="col-md-4">
<section class="user_info">
<%= gravatar_for #user %>
<h1><%= #user.name %></h1>
<span><%= link_to "view my profile", #user %></span>
<span><b>Microposts:</b> <%= #user.microposts.count %></span>
</section>
<section class="stats">
<%= render 'shared/stats' %>
<% if #users.any? %>
<div class="user_avatars">
<% #users.each do |user| %>
<%= link_to gravatar_for(user, size: 30), user %>
<% end %>
</div>
<% end %>
</section>
</aside>
<div class="col-md-8">
<h3><%= #title %></h3>
<% if #users.any? %>
<ul class="users follow">
<%= render #users %>
</ul>
<%= will_paginate %>
<% end %>
</div>
</div>
relationship_controller.rb
class RelationshipsController < ApplicationController
before_action :logged_in_user
def create
def create
#user = User.find(params[:followed_id])
current_user.follow(user)
respond_to do |format|
format.html { redirect_to #user }
format.js
end
def destroy
#user = Relationship.find(params[:id]).followed
current_user.unfollow(user)
respond_to do |format|
format.html { redirect_to #user }
format.js
end
end
end
user_controller.rb
class UsersController < ApplicationController
before_action :logged_in_user, only: [:index, :edit, :update, :destroy,
:following, :followers]
before_action:correct_user, only: [:edit, :update]
before_action:admin_user, only: :destroy
def index
#users= User.paginate(page: params[:page])
end
def show
#user= User.find(params[:id])
#microposts = #user.microposts.paginate(page: params[:page], :per_page => 5)
end
def new
#user= User.new
end
def create
#user= User.new(user_params)
if #user.save
#user.send_activation_email
flash[:info] = "Please check your email to activate your account."
redirect_to root_url
else
render 'new'
end
end
def edit
#user= User.find(params[:id])
end
def update
#user= User.find(params[:id])
if #user.update_attributes(user_params)
flash[:success] = "Profile updated"
redirect_to #user
else
render 'edit'
end
end
def destroy
User.find(params[:id]).destroy
flash[:success] = "User deleted"
redirect_to users_url
end
def following
#title = "Following"
#user = User.find(params[:id])
#users = #user.following.paginate(page: params[:page])
render 'show_follow'
end
def followers
#title = "Followers"
#user = User.find(params[:id])
#users = #user.followers.paginate(page: params[:page])
render 'show_follow'
end
private
def user_params
params.require(:user).permit(:name, :email, :password,
:password_confirmation)
end
def correct_user
#user= User.find(params[:id])
redirect_to(root_url) unless #user== current_user
end
def admin_user
redirect_to(root_url) unless current_user.admin?
end
end

Answer 1

Your issue is that the show action is actually using the #user instead of #users instance variable.
Your section for stats will not work since it's expecting what it looks like a collection of User as it would from the index action.
Since you have the action for followers which sets the #user and #users instance variables you have to visit that action instead and the code on your show.html.erb template will most likely have to move to the show_follow.html.erb template.
UPDATE
You need to remove this section from your show.html.erb template
<section class="stats">
<%= render 'shared/stats' %>
<% if #users.any? %>
<div class="user_avatars">
<% #users.each do |user| %>
<%= link_to gravatar_for(user, size: 30), user %>
<% end %>
</div>
<% end %>
</section>
</aside>
<div class="col-md-8">
<h3><%= #title %></h3>
<% if #users.any? %>
<ul class="users follow">
<%= render #users %>
</ul>
<%= will_paginate %>
<% end %>
</div>

Answer 2

I saw your repository and seems like you have messed up the code, according to what you are following(Ruby on Rails - Micheal Hartl), this is what you need to change:
The code in your show.html.erb should be placed in show_follow.html.erb
After this follow the 12th chapter again and place the right code in show.html.erb.