Controller error trying to run application with ruby on rails

Question

I am receiving an error when I try and run the application I am building with ruby on rails. I am getting the following error:

ActionController::MissingExactTemplate (TestController#index is missing a template for request formats: text/html):

class TestController < ApplicationController
  def index
  end
end

My route.rb file:

Rails.application.routes.draw do
  get 'test/index'
  # For details on the DSL available within this file, see https://guides.rubyonrails.org/routing.html
  root 'test#index'
end

My index file:

<h1>Test#index</h1>
<p>Find me in app/views/test/index.html.erb</p>

I can see all the files I am referring to but don't understand this error. Can anyone shed some light on why I am getting this error?

What is the full name of the index file (with extensions) and where is it located ? — Viktor
– Viktor, Commented Dec 26, 2019 at 21:26
@Viktor the index file is named index.html.erb and is located in the sampleApp/views/test/index.html.erb — ynwebdev
– ynwebdev, Commented Dec 26, 2019 at 22:56
Are you sure you saved the index file with that content? An error like that could occur when there's no content inside the view — Viktor
– Viktor, Commented Dec 26, 2019 at 23:48

spickermann · Accepted Answer · 2019-12-27 07:11:51Z

3

I think that is happening because the naming does not follow Rails naming conventions. Controllers should be named with plural nouns.

Placed the controller in app/controllers/tests_controller.rb and name it TestsController. Store the index view in app/views/tests/index.html.erb.

Furthermore the config/routes.rb needs to follow that convention too:

Rails.application.routes.draw do
  root to: 'tests#index'
end

answered Dec 27, 2019 at 7:11

spickermann

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