uninitialized constant RsvpsController - ruby-on-rails

Question

so i'm getting this error when I press my rsvp button from my ui. Maybe theres something wrong with my route or something wrong with my controller.
I'm not too sure at this point. I'm quite new to rails and I've been stuck on this issue for far too long. When I do make some changes another error pops up. I would truly appreciate some help
class RsvpController < ApplicationController
def create
rsvp = current_user.rsvp.build({post_id: params[:id]})
if rsvp.save
end
end
end
post controller
class PostsController < ApplicationController
before_action :set_post, only: [:show, :edit, :update, :destroy]
# GET /posts
# GET /posts.json
def index
#posts = Post.all
end
# GET /posts/1
# GET /posts/1.json
def show
#post = Post.find(params[:id])
end
# GET /posts/new
def new
#post = Post.new
end
# GET /posts/1/edit
def edit
unless current_user == #post.user
redirect_back fallback_location: root_path, notice: 'User is not owner'
end
end
# POST /posts
# POST /posts.json
def create
#post = Post.new(post_params)
respond_to do |format|
if #post.save
format.html { redirect_to #post, notice: 'Post was successfully created.' }
format.json { render :show, status: :created, location: #post }
else
format.html { render :new }
format.json { render json: #post.errors, status: :unprocessable_entity }
end
end
end
# PATCH/PUT /posts/1
# PATCH/PUT /posts/1.json
def update
respond_to do |format|
if #post.update(post_params)
format.html { redirect_to #post, notice: 'Post was successfully updated.' }
format.json { render :show, status: :ok, location: #post }
else
format.html { render :edit }
format.json { render json: #post.errors, status: :unprocessable_entity }
end
end
end
# DELETE /posts/1
# DELETE /posts/1.json
def destroy
#post.destroy
respond_to do |format|
format.html { redirect_to posts_url, notice: 'Post was successfully destroyed.' }
format.json { head :no_content }
end
end
private
# Use callbacks to share common setup or constraints between actions.
def set_post
#post = Post.find(params[:id])
end
# Never trust parameters from the scary internet, only allow the white list through.
def post_params
params.require(:post).permit(:date, :user_id, :description, :name, :address)
end
load_and_authorize_resource
def create
#rsvp=rsvp.new
end
end
=
routes.rb
Rails.application.routes.draw do
mount RailsAdmin::Engine => '/admin', as: 'rails_admin'
resources :posts
devise_for :users
root 'home#index'
get 'home/ruby_meetup'
resources :posts do
post 'rsvp', to: 'rsvps#create', on: :member
end
Also I want the number of users who rsvped/registered to show up but I'm getting random numbers and letters showing up on my ui. Is there something not right with my show page?
show.html.erb
<p id="notice"><%= notice %></p>
<p>
<strong>Date:</strong>
<%= #post.date %>
</p>
<p>
<strong>Name:</strong>
<%= #post.name %>
</p>
<p>
<strong>User_id:</strong>
<%= #post.user_id %>
</p>
<p><strong>Address:</strong> <%= #post.address %></p>
<p>
<strong>Description:</strong>
<%= #post.description %>
</p>
<p>
<strong>registered:</strong>
<%=#post.user %>
</p>
<% if current_user == #post.user %>
<%= link_to 'Edit', edit_post_path(#post) %> |
<%end%>
<%= link_to 'Back', posts_path %>
<div class="rsvp"><%= button_to "Rsvp now", rsvp_post_path(#post), class: "btn btn-primary" %></div>
<div class="map"><%= image_tag "http://maps.googleapis.com/maps/api/staticmap?center=#{#post.latitude},#{#post.longitude}&markers=#{#post.latitude},#{#post.longitude}&zoom=12&size=450x400&key=AIzaSyCKzKMEhSNgwSXf7WV71pHWgzdpMkPn8W4",
class: 'img-fluid img-rounded', alt: "#{#post} on the map"%>
</div>

Answer 1

controller class name should be RsvpsController currently its RsvpController, note that s is missing after Rsvp.

Answer 2

Change your route to this:
post 'rsvp', to: 'rsvp#create', on: :member