No route matches {:action=>"show", :controller=>"controller_name"} - ruby-on-rails

Question

I'm always getting this error and I don't understand where I am wrong. I think I have everything I need action in controller, resources in route file and view for controller action. I put the route current_events/new in the browser when I get this error. I also try with just resources :current_events
output of rake routes:
current_events GET /current_events(.:format) current_events#index
new_current_event GET /current_events/new(.:format) current_events#new
current_event GET /current_events/:id(.:format) current_events#show
config/routes.rb:
appname::Application.routes.draw do
devise_for :users, controllers: { omniauth_callbacks: "omniauth_callbacks"}
resources :current_events, only: [:show, :new, :index]
end
CurrentEventsController:
class CurrentEventsController < ApplicationController
def index
#current_event = CurrentEvent.all
respond_to do |format|
format.html
format.json { render json: #current_event }
end
end
def create
#current_event = CurrentEvent.new(params[:current_event])
respond_to do |format|
if #current_event.save
format.html { redirect_to #current_event, notice: 'current event was created.' }
format.json { render json: #current_event, status: :created, location: #current_event }
else
format.html { render action: "new" }
format.json {render json: #current_event.errors, status: :unprocessable_entity}
end
end
end
def new
#current_event = CurrentEvent.new
respond_to do |format|
format.html
format.json { render json: #current_event }
end
end
def edit
#current_event = CurrentEvent.find(params[:id])
end
def destroy
#current_event = CurrentEvent.find(params[:id])
#current_event.destroy
respond_to do |format|
format.html { redirect_to current_event_url}
format.json { head :no_content }
end
end
def show
#current_event = CurrentEvent.find(params[:id])
respond_to do |format|
format.html
format.json{ render json: #current_event}
end
end
end

Answer 1

I forgot to say, I am trying to go to new page so in browser I say current_events/new
It will still throw an error if there's a link that doesn't work on the page.
In your view, the link should look something like this:
<%= link_to "name of current event", current_event_path(#current_event) %>
update
based on your rake routes
current_event GET /current_events/:id(.:format) #note ":id"
when you're trying to see a specific current event, you need to pass it an :id which makes sense - if you're trying to call a specific person you need to use their telephone number. so your code should look like this:
<%= link_to 'Back', current_event_path(#event) %>
But keep in the mind that #event won't work unless you define it correctly in the controller action for this view.