Ruby Rails 4部署在Ubuntu13上——nokogiri（加载错误）

我已经通过Capistrano成功地将Rails 4应用程序从MS Windows 7机器部署到带有Nginx和passenger的Ubuntu 13.04服务器设置中。然而，我在页面加载时遇到了这个错误（相当长）（下面的错误）

是否有其他人遇到此错误并知道如何解决？我的localhost在开发和生产中都非常有效。我在谷歌上搜索过，发现

无法加载这样的文件——nokogiri（LoadError）

的出现有不同的原因，但没有明确的解决方案

注意：由于字符限制，需要截断错误文件的下半部分

Gem文件：

source 'https://rubygems.org'
ruby '2.0.0'
gem 'rails', '4.0.0'

gem 'rake', '10.1.0'
gem 'sqlite3', '1.3.8'
gem 'sass-rails', '~> 4.0.0'
gem "actionpack", '~> 4.0.0'
gem 'uglifier', '>= 1.3.0'
gem 'coffee-rails', '~> 4.0.0'
gem 'modernizr', '~> 2.6.2'
gem 'therubyracer', platforms: :ruby
gem 'jquery-rails', '3.0.4'
gem 'turbolinks', '1.3.0'
gem 'jbuilder', '~> 1.2'
gem 'nokogiri'

#Spree
gem 'spree', github: 'spree/spree'
gem 'spree_auth_devise', github: 'spree/spree_auth_devise'
gem 'ransack', github: 'ernie/ransack'
gem 'awesome_nested_set', github: 'collectiveidea/awesome_nested_set'
# Spree Payment Methods
gem 'spree_gateway', github: 'spree/spree_gateway'
# Spree Shipping Methods
gem 'spree_active_shipping', :git => "git://github.com/spree/spree_active_shipping"

group :doc do
  # bundle exec rake doc:rails generates the API under doc/api.
  gem 'sdoc', require: false
end

gem 'debugger', group: [:development, :test]

group :production, :staging do
  gem 'capistrano', '2.15.5'
  gem 'mysql2', '0.3.13'
end

页面加载时出错：

cannot load such file -- nokogiri (LoadError)
/home/deploy/clientsite_staging/shared/bundle/ruby/2.0.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:228:in `require'
/home/deploy/clientsite_staging/shared/bundle/ruby/2.0.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:228:in `block in require'
/home/deploy/clientsite_staging/shared/bundle/ruby/2.0.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:213:in `load_dependency'
/home/deploy/clientsite_staging/shared/bundle/ruby/2.0.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:228:in `require'
/home/deploy/clientsite_staging/shared/bundle/ruby/2.0.0/gems/deface-1.0.0.rc4/lib/deface/parser.rb:1:in `<top (required)>'
/home/deploy/clientsite_staging/shared/bundle/ruby/2.0.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:228:in `require'
/home/deploy/clientsite_staging/shared/bundle/ruby/2.0.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:228:in `block in require'
/home/deploy/clientsite_staging/shared/bundle/ruby/2.0.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:213:in `load_dependency'
/home/deploy/clientsite_staging/shared/bundle/ruby/2.0.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:228:in `require'
/home/deploy/clientsite_staging/shared/bundle/ruby/2.0.0/gems/deface-1.0.0.rc4/lib/deface.rb:8:in `<top (required)>'
/home/deploy/clientsite_staging/shared/bundle/ruby/2.0.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:228:in `require'
/home/deploy/clientsite_staging/shared/bundle/ruby/2.0.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:228:in `block in require'

....[a lot more error file]...

无法加载这样的文件--nokogiri（加载错误）
/home/deploy/clientsite_staging/shared/bundle/ruby/2.0.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:228:in'require'
/home/deploy/clientsite_staging/shared/bundle/ruby/2.0.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:228:in'block in require'
/home/deploy/clientsite\u staging/shared/bundle/ruby/2.0.0/gems/activesupport-4.0.0/lib/active\u support/dependencies.rb:213:in'load\u dependencity'
/home/deploy/clientsite_staging/shared/bundle/ruby/2.0.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:228:in'require'
/home/deploy/clientsite\u staging/shared/bundle/ruby/2.0.0/gems/deface-1.0.0.rc4/lib/deface/parser.rb:1:in`'
/home/deploy/clientsite_staging/shared/bundle/ruby/2.0.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:228:in'require'
/home/deploy/clientsite_staging/shared/bundle/ruby/2.0.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:228:in'block in require'
/home/deploy/clientsite\u staging/shared/bundle/ruby/2.0.0/gems/activesupport-4.0.0/lib/active\u support/dependencies.rb:213:in'load\u dependencity'
/home/deploy/clientsite_staging/shared/bundle/ruby/2.0.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:228:in'require'
/home/deploy/clientsite\u staging/shared/bundle/ruby/2.0.0/gems/deface-1.0.0.rc4/lib/deface.rb:8:in`'
/home/deploy/clientsite_staging/shared/bundle/ruby/2.0.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:228:in'require'
/home/deploy/clientsite_staging/shared/bundle/ruby/2.0.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:228:in'block in require'
..[更多错误文件]。。。

---

解决了的！

---

这是因为gem

#gem'bcryptruby'，“~>3.0.0”

被注释掉了。当我取消对gem的注释时，它给出了另一个错误，所以我研究并发现用

gem'bcrypt ruby'，git:'https://github.com/codahale/bcrypt-ruby.git“，：require=>“bcrypt”

由于以下原因而起作用。我现在可以部署并查看页面加载。

当您执行

cap deploy:setup

和

cap deploy

时，捆绑包安装是否成功运行？@Almaron Yes-

cap deploy:setup

，

cap deploy:check

，以及

cap deploy

都成功。codehale repo解决方案显然不再有效，但是，使用最新最好的Ruby版本（在本文撰写时为2.1.1）可能会有所帮助。（这对我很有帮助，因为到目前为止，我还找不到任何其他有效的方法。）