Heroku代碼= H10應用程序崩潰

Question

我是Heroku和Rails的新手。 我已經閱讀了為手機應用程序創建API的文章。

我已經在本地成功創建，並且在運行服務器時，API可以正確響應，但是當我嘗試使用heroku鏈接到我的應用程序時，在log \\ console中出現錯誤

at=error code=H10 desc="App crashed" method=GET path="/api/v1/carbrands/" host=b-taxi-server.herokuapp.com request_id=283223f5-f68d-4c4a-bb70-3346a2e3327f fwd="156.205.91.128" dyno= connect= service= status=503 bytes=

at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=b-taxi-server.herokuapp.com request_id=10510255-6149-4583-8886-6bbb69f37aaa fwd="156.205.91.128" dyno= connect= service= status=503 bytes=

/app/app/controllers/Api/V1/carbrands_controller.rb:1:in `<top (required)>': uninitialized constant Api (NameError)
        from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.6/lib/rails/engine.rb:472:in `block (2 levels) in eager_load!'
        from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.6/lib/rails/engine.rb:471:in `each'
        from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.6/lib/rails/engine.rb:471:in `block in eager_load!'
        from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.6/lib/rails/engine.rb:469:in `each'
        from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.6/lib/rails/engine.rb:469:in `eager_load!'
        from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.6/lib/rails/engine.rb:346:in `eager_load!'
        from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.6/lib/rails/application/finisher.rb:56:in `each'
        from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.6/lib/rails/application/finisher.rb:56:in `block in <module:Finisher>'
        from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.6/lib/rails/initializable.rb:30:in `instance_exec'
        from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.6/lib/rails/initializable.rb:30:in `run'
        from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.6/lib/rails/initializable.rb:55:in `block in run_initializers'
        from /app/vendor/ruby-2.2.4/lib/ruby/2.2.0/tsort.rb:226:in `block in tsort_each'
        from /app/vendor/ruby-2.2.4/lib/ruby/2.2.0/tsort.rb:348:in `block (2 levels) in each_strongly_connected_component'
        from /app/vendor/ruby-2.2.4/lib/ruby/2.2.0/tsort.rb:429:in `each_strongly_connected_component_from'
        from /app/vendor/ruby-2.2.4/lib/ruby/2.2.0/tsort.rb:347:in `block in each_strongly_connected_component'
        from /app/vendor/ruby-2.2.4/lib/ruby/2.2.0/tsort.rb:345:in `each'
        from /app/vendor/ruby-2.2.4/lib/ruby/2.2.0/tsort.rb:345:in `call'
        from /app/vendor/ruby-2.2.4/lib/ruby/2.2.0/tsort.rb:345:in `each_strongly_connected_component'
        from /app/vendor/ruby-2.2.4/lib/ruby/2.2.0/tsort.rb:224:in `tsort_each'
        from /app/vendor/ruby-2.2.4/lib/ruby/2.2.0/tsort.rb:203:in `tsort_each'
        from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.6/lib/rails/initializable.rb:54:in `run_initializers'
        from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.6/lib/rails/application.rb:352:in `initialize!'
        from /app/config/environment.rb:5:in `<top (required)>'
        from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.6/lib/rails/application.rb:328:in `require_environment!'
        from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:142:in `require_application_and_environment!'
        from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:67:in `console'
        from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
        from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.6/lib/rails/commands.rb:17:in `<top (required)>'
        from bin/rails:4:in `require'
        from bin/rails:4:in `<main>'

Carbrands控制器位於$$ \\ app \\ controllers \\ Api \\ V1 \\ carbrands_controller.rb下

我有控制器carbrands_controller.rb，具有以下內容

class Api::V1::CarbrandsController < ApplicationController
  respond_to :json
  skip_before_filter :verify_authenticity_token

  def index
        output_brands
     end

    def output_brands
      brands = CarBrand.all
      #@trips = Trip.all
      if brands
        respond_to do |format|
        format.html
        format.json { render :json => brands.to_json, status: status } #see if you want to send the cars for each user or not
        end
      else
        output_error(401, @noBrands_found)
      end    

    end

end

在我的路線上

Rails.application.routes.draw do
  #api routes path
  #devise_for :users
  namespace :api, defaults: { format: :json } do
    namespace :v1 do
      resources :carbrands,  only: [:create, :index]
    end
  end
end

老實說，我不確定什么是錯。 我已經使用git push heroku master推送了代碼

如何解決該錯誤？

Answer 1

我終於找到了解決方案。

控制器位於app \\ controllers \\ Api \\ V1 \\下。 因此，“ A”和“ V”為大寫。 我需要將文件夾重命名為“ a”和“ v”。 然后成功了！

另外，有時git不會注意到這些更改，所以我所做的是刪除整個文件夾“ Api” >>提交>>>用“ api”重新創建，然后提交。 之后，我推了推，heroku工作了