Question

我有这个奇怪的错误（对我来说）我无法弄清楚为什么会发生。

有时当我致电RestClient.get 'http://google.com'时，我收到了回复，有时我收到此错误undefined method '<<' for true:TrueClass

我正在使用Rails 4.1.8，Ruby 2.1.5p273和RestClient 1.7.2

    2.1.5 :010 > RestClient.get 'https://google.com'
NoMethodError: undefined method `<<' for true:TrueClass
    from /home/ivan/.rvm/gems/ruby-2.1.5/gems/rest-client-1.7.2/lib/restclient/request.rb:525:in `log_request'
    from /home/ivan/.rvm/gems/ruby-2.1.5/gems/rest-client-1.7.2/lib/restclient/request.rb:410:in `transmit'
    from /home/ivan/.rvm/gems/ruby-2.1.5/gems/rest-client-1.7.2/lib/restclient/request.rb:176:in `execute'
    from /home/ivan/.rvm/gems/ruby-2.1.5/gems/rest-client-1.7.2/lib/restclient/request.rb:41:in `execute'
    from /home/ivan/.rvm/gems/ruby-2.1.5/gems/rest-client-1.7.2/lib/restclient.rb:65:in `get'
    from (irb):10
    from /home/ivan/.rvm/gems/ruby-2.1.5/gems/railties-4.1.8/lib/rails/commands/console.rb:90:in `start'
    from /home/ivan/.rvm/gems/ruby-2.1.5/gems/railties-4.1.8/lib/rails/commands/console.rb:9:in `start'
    from /home/ivan/.rvm/gems/ruby-2.1.5/gems/railties-4.1.8/lib/rails/commands/commands_tasks.rb:69:in `console'
    from /home/ivan/.rvm/gems/ruby-2.1.5/gems/railties-4.1.8/lib/rails/commands/commands_tasks.rb:40:in `run_command!'
    from /home/ivan/.rvm/gems/ruby-2.1.5/gems/railties-4.1.8/lib/rails/commands.rb:17:in `<top (required)>'
    from bin/rails:4:in `require'
    from bin/rails:4:in `<main>'

Answer 1

您的RestClient.log设置为true。通过拦截二传手来查找发生的位置：

def RestClient.log=(value)
  raise "HERE!"
end

然后等待直到触发异常，并从堆栈跟踪中查看谁分配了愚蠢的值。：）

未定义的方法`＆lt;＆lt;＆＃;为true：TrueClass

1 个答案: