LoadError：无法加载这样的文件 - Heroku上的Travis Ruby on Rails

Question

我正在使用Travis CI进行Ruby on Rails应用程序，并且我的构建成功并推送到Heroku。当我尝试在Heroku上检查端点时，出现应用程序错误。

我所做的调查问题是从我的应用程序的根运行heroku rake db:migrate --app AppNameHere，并填充下面的错误：

Running rake db:migrate on lawville... up, run.9338 (Free) 
rake aborted! 
LoadError: cannot load such file -- travis 
/app/config/application.rb:11:in `require' 
/app/config/application.rb:11:in `<top (required)>' 
/app/Rakefile:4:in `require' 
/app/Rakefile:4:in `<top (required)>' 
/app/vendor/bundle/ruby/2.2.0/gems/rake-11.3.0/exe/rake:27:in `<top (required)>' 

应用程序/配置/ application.rb中（注11行从错误是'需要“特拉维斯”）

require File.expand_path('../boot', __FILE__) 

require 'rails/all' 
require 'active_model/railtie' 
require 'active_job/railtie' 
require 'active_record/railtie' 
require 'action_controller/railtie' 
require 'action_mailer/railtie' 
require 'action_view/railtie' 
require 'sprockets/railtie' 
require 'travis' 
require 'nokogiri' 
require 'carrierwave' 
require 'simple_form' 
require 'social-share-button' 
require 'redactor-rails' 
require 'devise' 

# Require the gems listed in Gemfile, including any gems 
# you've limited to :test, :development, or :production. 
Bundler.require(*Rails.groups) 

module LawVille 
    class Application < Rails::Application 
    # Settings in config/environments/* take precedence over those specified here. 
    # Application configuration should go into files in config/initializers 
    # -- all .rb files in that directory are automatically loaded. 

    # Set Time.zone default to the specified zone and make Active Record auto-convert to this zone. 
    # Run "rake -D time" for a list of tasks for finding time zone names. Default is UTC. 
    # config.time_zone = 'Central Time (US & Canada)' 

    # The default locale is :en and all translations from config/locales/*.rb,yml are auto loaded. 
    # config.i18n.load_path += Dir[Rails.root.join('my', 'locales', '*.{rb,yml}').to_s] 
    # config.i18n.default_locale = :de 

    # Do not swallow errors in after_commit/after_rollback callbacks. 
    config.active_record.raise_in_transactional_callbacks = true 
    end 
end 

特拉维斯建设（在什么情况下可以摆脱光解决我的问题）

https://travis-ci.org/AfolabiOlaoluwa/LawVille/builds/166891343

我的application.rb中的内容适用于开发。

我能做些什么来解决这个问题？提前致谢。

Answer 1

从application.rb中

很肯定特拉维斯删除require 'travis'只是对后推到项目回购的钩子。这对你在开发过程中没有错误的原因是你（很可能）安装了travis gem。然而Heroku没有。因此生产失败。

如需更清晰的图片，请参阅Travis Ruby Docs。

Answer 2

我发现导致问题的原因是我的开发组中有我的宝石，这是错误的，并且使Heroku有加载错误。

从开发组中删除的宝石，并使其全球之后，我也删除了所有我需要自己的宝石从我config/application.rb，这样的我application.rb变为：

require File.expand_path('../boot', __FILE__) 

require 'rails/all' 
require 'active_model/railtie' 
require 'active_job/railtie' 
require 'active_record/railtie' 
require 'action_controller/railtie' 
require 'action_mailer/railtie' 
require 'action_view/railtie' 
require 'sprockets/railtie' 

# Require the gems listed in Gemfile, including any gems 
# you've limited to :test, :development, or :production. 
Bundler.require(*Rails.groups) 

module LawVille 
    class Application < Rails::Application 
    # Settings in config/environments/* take precedence over those specified here. 
    # Application configuration should go into files in config/initializers 
    # -- all .rb files in that directory are automatically loaded. 

    # Set Time.zone default to the specified zone and make Active Record auto-convert to this zone. 
    # Run "rake -D time" for a list of tasks for finding time zone names. Default is UTC. 
    # config.time_zone = 'Central Time (US & Canada)' 

    # The default locale is :en and all translations from config/locales/*.rb,yml are auto loaded. 
    # config.i18n.load_path += Dir[Rails.root.join('my', 'locales', '*.{rb,yml}').to_s] 
    # config.i18n.default_locale = :de 

    # Do not swallow errors in after_commit/after_rollback callbacks. 
    config.active_record.raise_in_transactional_callbacks = true 
    end 
end 

然后它的工作。