应用程序错误：Heroku，Ruby on Rails 4，警告：rails_12factor，vendor / bundle，no Procfile

Question

我的Ruby on Rails 4应用程序在Mac上运行良好。

但是当我尝试将我的应用程序上传到Heroku时，带有警告消息，Heroku应用程序没有工作，在相应的网页中说application error。

在这里，我放了一个日志文件，包括非常神秘的术语，如rails_12factor和procfile：

remote: ###### WARNING:
remote:        Include 'rails_12factor' gem to enable all platform features
remote:        See https://devcenter.heroku.com/articles/rails-integration-gems for more information.
remote: 
remote: ###### WARNING:
remote:        Removing `vendor/bundle`.
remote:        Checking in `vendor/bundle` is not supported. Please remove this directory
remote:        and add it to your .gitignore. To vendor your gems with Bundler, use
remote:        `bundle pack` instead.
remote: 
remote: ###### WARNING:
remote:        You have not declared a Ruby version in your Gemfile.
remote:        To set your Ruby version add this line to your Gemfile:
remote:        ruby '2.0.0'
remote:        # See https://devcenter.heroku.com/articles/ruby-versions for more information.
remote: 
remote: ###### WARNING:
remote:        No Procfile detected, using the default web server (webrick)
remote:        https://devcenter.heroku.com/articles/ruby-default-web-server
remote: 
remote: -----> Discovering process types
remote:        Procfile declares types -> (none)
remote:        Default types for Ruby  -> console, rake, web, worker
remote: 
remote: -----> Compressing... done, 30.0MB
remote: -----> Launching... done, v6
remote:        https://ringlebeta.herokuapp.com/ deployed to Heroku
remote: 
remote: Verifying deploy... done.

这是我的Gemfile！我很想听听任何建议和意见：

source 'https://rubygems.org'


# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '4.2.1'
# Use sqlite3 as the database for Active Record
#gem 'sqlite3'
# Use SCSS for stylesheets
gem 'sass-rails', '~> 5.0'
# Use Uglifier as compressor for JavaScript assets
gem 'uglifier', '>= 1.3.0'
# Use CoffeeScript for .coffee assets and views
gem 'coffee-rails', '~> 4.1.0'
# See https://github.com/rails/execjs#readme for more supported runtimes
# gem 'therubyracer', platforms: :ruby

gem 'bootstrap-sass'
gem 'autoprefixer-rails'

# Use jquery as the JavaScript library
gem 'jquery-rails'
# Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks
gem 'turbolinks'
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
gem 'jbuilder', '~> 2.0'
# bundle exec rake doc:rails generates the API under doc/api.
gem 'sdoc', '~> 0.4.0', group: :doc


#Google Auth
gem "omniauth-google-oauth2", "~> 0.2.1"


# Use ActiveModel has_secure_password
# gem 'bcrypt', '~> 3.1.7'

# Use Unicorn as the app server
# gem 'unicorn'

# Use Capistrano for deployment
# gem 'capistrano-rails', group: :development

group :development, :test do
  # Call 'byebug' anywhere in the code to stop execution and get a debugger console
  gem 'byebug'
  gem 'sqlite3'
end

 # Access an IRB console on exception pages or by using <%= console %> in views
  gem 'web-console', '~> 2.0'

  # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
"Gemfile" 54L, 1596C

Answer 1

Heroku集成以前依赖于使用Rails插件系统，该系统已从Rails 4中删除。要启用静态资产服务和Heroku登录等功能，请将rails_12factor gem添加到您的Gemfile中。

在Gemfile的末尾添加：

gem'rail_12factor'，group :: production

然后运行：

捆绑安装，然后尝试部署：

Answer 2

将其添加到您的Gemfile，然后尝试部署：

source 'https://rubygems.org'

# ...
# Your Gemfile contents here
# ...

group :production do
  gem 'pg'   # If you plan to use PostgreSQL in your Heroku app
  gem 'rails_12factor'
end

rails_12factor是Heroku提供的宝石。它可以在生产中提供资源并将记录器设置为标准输出，这两者都需要在12因子提供程序上运行Rails应用程序。

Answer 3

尝试在根目录中创建Procfile。在Procfile中添加以下行：web: bundle exec unicorn -p $PORT -c ./config/unicorn.rb