Ruby PUMA错误：“无法加载应用程序：NameError：未初始化的常量Service :: Resolv”

使用Windows 10E ruby 2.3.3p222（2016-11-21修订版56859）[i386-mingw32] puma v 2.13.4

我是一个巨大的PUMA菜鸟，所以请原谅 . 我知道代码（python，php，只是不是rails，ruby）

所以，我正在努力恢复我的伙伴抛弃给我的旧项目 . 我已经在这里工作了12个小时而且我已经走了很长一段路，但我无法克服这个错误...而且我担心这个决议将会超出我的联盟，但我会试一试：

当我尝试启动应用程序时，我收到此错误：

C：\ inetpub \ wwwroot \ Plex-Board> sh runserver.sh *** SIGUSR2 not implemented, signal based restart unavailable! *** SIGUSR1未实现，基于信号的重启不可用！ *** SIGHUP未实现，基于信号的日志重新开启不可用！ Puma以单一模式开始......

版本2.13.4（ruby 2.3.3-p222），代号：A仲夏代码的Dream Min线程：0，最大线程数：16环境： 生产环境 ！无法加载应用程序：NameError：uninitialized constant Service :: Resolv C：/inetpub/wwwroot/Plex-Board/app/models/service.rb:14:in class：Service'：uninitialized constant Service :: Resolv（NameError）from C：/inetpub/wwwroot/Plex-Board/app/models/service.rb:1:in"from C：/Ruby23/lib/ruby/gems/2.3.0/gems/railties-4.2.5/lib/rails /engine.rb:472:in eager_load中的块（2级）！'来自C：/Ruby23/lib/ruby/gems/2.3.0/gems/railties-4.2.5/lib/rails/engine.rb:471:inach'来自C：/Ruby23/lib/ruby/gems/2.3 . 0 / gems / railties-4.2.5 / lib / rails / engine.rb：471：在eager_load块中！来自C：/Ruby23/lib/ruby/gems/2.3.0/gems/railties-4.2.5/lib/rails/engine.rb:469:inach'来自C：/Ruby23/lib/ruby/gems/2.3 . 0 / gems / railties-4.2.5 / lib / rails / engine.rb：469：in eager_load！'来自C：ineager_load！'来自C：/Ruby23/lib/ruby/gems/2.3.0/gems/railties-4.2.5/lib/rails/application/finisher.rb:56：在每个'来自C：/ Ruby23 / lib / ruby / gems /2.3.0/gems/railties-4.2.5/lib/rails/application/finisher.rb:56:inblock in module：Finisher'from C：/Ruby23/lib/ruby/gems/2.3.0/gems/railties -4.2.5 / lib / rails / initializable.rb:30:in实例_exec'来自C：/Ruby23/lib/ruby/gems/2.3.0/gems/railties-4.2.5/lib/rails/initializable.rb： 30：inrun'来自C：/Ruby23/lib/ruby/gems/2.3.0/gems/railties-4.2.5/lib/rails/initializable.rb:55:in block in run_initializers'from C：/ Ruby23 / lib /ruby/2.3.0/tsort.rb:228:inblock in tsort_each'from C：/Ruby23/lib/ruby/2.3.0/tsort.rb:350：in block（2 levels）in each_strongly_connected_component'from C：/ Ruby23 / lib / ruby / 2.3.0 / tsort.rb:431:inach_strongly_connected_component_from'from C：/Ruby23/lib/ruby/2.3.0/tsort.rb:349：in each_strongly_connected_component'from C：/ Ruby23 / lib /ruby/2.3.0/tsort.rb:347:ineach'来自C：/Ruby23/lib/ruby/2.3.0/tsort.rb:347：来自C：/ Ruby23 / lib / ruby / 2.3.0 / tsort.rb:347:inach_strongly_connected_component'来自C：/Ruby23/lib/ruby/2.3.0/tsort.rb:226:in tsort_each'来自C：/Ruby23/lib/ruby/2.3.0/tsort .rb：205：intsort_each'来自C：/Ruby23/lib/ruby/gems/2.3.0/gems/railties-4.2.5/lib/rails/initializable.rb:54:in run_initializers'来自C：/ Ruby23 / LIB /红宝石/宝石/ 2.3.0 /宝石/ railties-4.2.5 / lib目录/导轨/ application.rb中：352：ininitialize“！来自C：/inetpub/wwwroot/Plex-Board/config/environment.rb:5:in"from C：/Ruby23/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:inrequire'来自C ：/Ruby23/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55：在'来自c：/Ruby23/lib/ruby/gems/2.3.0的'来自config.ru:3:inblock'中/gems/puma-2.13.4/lib/puma/rack/builder.rb:184:in instance_eval'来自C：/Ruby23/lib/ruby/gems/2.3.0/gems/puma-2.13.4/lib/ puma / rack / builder.rb：184：ininitialize'from config.ru：in new'from config.ru：in'from C：/Ruby23/lib/ruby/gems/2.3.0/gems/puma-2.13.4 /lib/puma/rack/builder.rb:170:in eval'来自C：/Ruby23/lib/ruby/gems/2.3.0/gems/puma-2.13.4/lib/puma/rack/builder.rb： 170：innew_from_string'来自C：/Ruby23/lib/ruby/gems/2.3.0/gems/puma-2.13.4/lib/puma/rack/builder.rb：161：来自C：/ Ruby23 / lib的parse_file' /ruby/gems/2.3.0/gems/puma-2.13.4/lib/puma/configuration.rb:129:inload_rackup'来自C：/Ruby23/lib/ruby/gems/2.3.0/gems/puma-2.13 .4 / lib / puma / configuration.rb:96:in app'from C：/Ruby23/lib/ruby/gems/2.3.0/ge ms / puma-2.13.4 / lib / puma / runner.rb:113：来自C：/Ruby23 / lib / ruby rb：79：运行'来自C：/Ruby23/lib/ruby/gems/2.3.0/gems/puma-2.13.4/lib/puma/cli.rb:215：inrun'来自C：/ Ruby23 / lib /ruby/gems/2.3.0/gems/puma-2.13.4/bin/puma:10:in来自C：/ Ruby23 / bin / puma：22：inload'来自C：/ Ruby23 / bin / puma：22 ：在''

有问题的文件（C：/inetpub/wwwroot/Plex-Board/app/models/service.rb）中有这一行：

class Service <ActiveRecord :: Base belongs_to：service_flavor，polymorphic :: true＃before_destroy：destroy_associated after_initialize：init

attr_accessor :timeout
strip_attributes only: [:ip, :url, :dns_name], collapse_spaces: true

validates_associated :service_flavor
validates :name, presence: true, uniqueness: true, allow_blank: false
validates :url, presence: true, uniqueness: true, allow_blank: false
validates_inclusion_of :port, in: 1..65535
validates :ip, length: { minimum: 7, maximum: 45 },
    format: { with: Resolv::IPv4::Regex },
    uniqueness: { scope: :port }, allow_blank: true
validates :dns_name, length: { minimum: 2, maximum: 127 },
    uniqueness: { scope: :port }, allow_blank: true
validates :ip, presence: true, if: (:ip_and_dns_name_dont_exist)
validates :dns_name, presence: true, if: (:ip_and_dns_name_dont_exist)

def init
  @timeout ||= 5
  self.online_status ||= false
end

def ip_and_dns_name_dont_exist
    if (ip.blank? || ip.to_s.empty?) && (dns_name.blank? || dns_name.to_s.empty?)
        self.errors.add(:base, 'IP Address or DNS Name must exist')
        true
    else
        false
    end
end

def ping ping_destination = connect_method begin Timeout.timeout（@timeout）do s = TCPSocket.new（ping_destination，self.port）s.close self.update（online_status：true，last_seen：Time.now）return true end rescue Errno :: ECONNREFUSED self.update（online_status：true，last_seen：Time.now）返回true rescue Timeout :: Error，Errno :: ENETUNREACH，Errno :: EHOSTUNREACH，SocketError self.update（online_status：false）返回false end end

def connect_method if！self.dns_name.blank？ self.dns_name else self.ip end end end

我可以猜出这段代码是做什么的，但我不确定如何解决它，或者即使它可以修复 .

Sooo，任何想法？