Added user association but still getting "undefined method"

I have been working on this for many hours now and have started over several times (from a backup point) trying to figure out the problem.

I am trying to add comments to posts. Comments work fine, it's getting the username and avatar to show up that's not working. Here is what I did step by step.

1) rails g model Comment body:text user:references post:references

2) I verified that the model was correct

class Comment < ApplicationRecord
  belongs_to :user
  belongs_to :post
end

3) rake db:migrate

4) Added has_many :comments, dependent: :destroy to both user.rb and post.rb

5) Added resources :comments to my routes.

  resources :posts do
    resources :comments
    member do
      post '/like' => 'posts#like'
    end
  end

6) Generated comments controller rails g controller comments

7) Altered the comments the comments controller:

class CommentsController < ApplicationController
  def create
    @post = Post.find(params[:post_id])
    @comment = @post.comments.create(params[:comment].permit(:body))
    @comment.user = current_user
    if @comment.save
      redirect_to post_path(@post)
    else
      # something else
    end
  end
end

8) Created two partials "_comment.html.erb" and "_form.html.erb" in comments' view folder.

"_comment.html.erb"

<h2><%= @comment.user.name %></h2>
<p><%= comment.body %></p>

"_form.html.erb"

<%= form_for([@post, @post.comments.build]) do |f| %>
  <p>
    <%= f.text_field :body %>
  </p>
  <p>
    <%= f.submit %>
  </p>
<% end %>

9) Added comments to posts' show page

<h4><%= @post.comments.count %> comments</h4>
<%= render @post.comments %>

<h2>Add a comment</h2>
<%= render "comments/form"%>

10) Restarted server

11) Tried to create a comment and got the following error:

NoMethodError in Posts#show

undefined method `user' for nil:NilClass

 <h2><%= @comment.user.name %></h2> #THIS LINE IS THE ERROR