I want to be able to post images using Active Storag, but when I transition to the Post List page, it becomes undefined method `images' for nil: NilClass.

 ActionView:: Template:: Error (undefined method `images' for nil: NilClass):

class Post <ApplicationRecord
    has_many_attached —images
    belongs_to:user, optional:true
end

class User<ApplicationRecord
  # Include default device modules.Others available are:
  # :confirmable, :lockable, :timeoutable, :trackable and :omniauthable
  device:database_authenticatable, :registerable,
         :recoverable, :rememberable, :validatable
  # Include default device modules.Others available are:
  # :confirmable, :lockable, :timeoutable, :trackable and :omniauthable
  has_many —posts
  has_one:profile, dependent::destroy

  delete:name,:leaning_history,:purpoose,:image, to:profile
end

class PostsController<ApplicationController
  before_action —Authenticate_user!
  before_action: find_post, only: [:edit,:update,:show,:destroy]

    def index
        @posts=Post.all
      end

      def new
      @post=Post.new
    end

    default
      @post=Post.find(post_params)
    end

    def create
      return redirect_to new_profile_path, alert: "Please register your profile" if current_user.profile.blank?
      @post=current_user
      @post=Post.create params.require(:post).permit(:content, images:[]) 
      binding.ply
      [email protected]
        redirect_to root_path, notice: 'Post Successful'
        else
          render:new
        end
      end

      default update
        [email protected](post_params)
          redirect_to root_path
        else
          render —edit
        end
      end

      def destroy
        [email protected] store
          redirect_to root_path, alert: 'Post deleted'
        else
          redirect_to root_path
        end
      end

      private
        def post_params
          param.require(:post).permit(:content, images:[])
        end

        def find_post
          @post=Post.find (params[:id])
        end

        def force_redirect_unless_my_post
          return redirect_to root_path, alert: 'You do not have permissions' [email protected]!=current_user
        end
end

<div class='post-content'>
   <%=form_with model:@post,local:true do|f|%>
    <%=f.text_area:content,:placeholder=> "What kind of Kanji is it now?"%>
    <%=f.file_fiffeld:images,direct_upload:true,multiple:true%>
    <div class='submit-block'>
       <%=f.submit 'Post', class: "button"%>
    </div>
   <%end%>
</div>

<div class="content-wrapper">
    <div class="content-block">
        <%@posts.each do | post | %>
        <div class="content">
         <div class="user-about">
         <div class="image">
             <%=image_tag'user.JPG'%>
         </div>
         <div class="profile">
            <div class="name-history">
                <div class="name">
                    taka Corporation
                </div>
                <div class="mania-history">
                    Mania history: 1 year
                </div>
             </div>

             <div class="enjoy-point">
                 Fun point: It's fun to see what you make move.
             </div>
         </div>
       </div>

         <div class="text">
             <p><%post.content%>/p>
         </div>

         <%[email protected] tached?%>
         <div class='images'>
         <%@post.images.each do | image | %>
         <%=image_tag image%><br>
         </div>
         <%end%>
         <%end%>


         <div class="action-menu">
             <div class="like">

             </div>
             <div class="comment">

             </div>
         </div>

        </div>
        <%end%>
    </div>
    <div class="sidebar">
     <div class="box">

     </div>
     <div class="box">

    </div>
    </div>
</div>

class Post <ApplicationRecord
    has_many_attached —images
    belongs_to:user, optional:true
end

class User<ApplicationRecord
  # Include default device modules.Others available are:
  # :confirmable, :lockable, :timeoutable, :trackable and :omniauthable
  device:database_authenticatable, :registerable,
         :recoverable, :rememberable, :validatable
  # Include default device modules.Others available are:
  # :confirmable, :lockable, :timeoutable, :trackable and :omniauthable
  has_many —posts
  has_one:profile, dependent::destroy

  delete:name,:mania_history,:enjoy_point,:image, to:profile
end