错误module_inheritable_attributes.rb中的值为零

Question

我有以下脚本：

require 'httparty'
require 'aws-sdk-s3'

include HTTParty

Aws.config.update({
  region: 'us-east-1',
  credentials: Aws::Credentials.new('...', '...')
})

client = Aws::S3::Resource.new
movies = self.class.get("#{HOST}/movies")

当我运行它时，会遇到以下错误：

Traceback (most recent call last):
        10: from script.rb:33:in `<main>'
         9: from script.rb:33:in `new'
         8: from /Users/me/.rvm/gems/ruby-2.6.5/gems/aws-sdk-athena-1.22.0/lib/aws-sdk-athena/resource.rb:14:in `initialize'
         7: from /Users/me/.rvm/gems/ruby-2.6.5/gems/aws-sdk-core-3.78.0/lib/seahorse/client/base.rb:99:in `new'
         6: from /Users/me/.rvm/gems/ruby-2.6.5/gems/aws-sdk-athena-1.22.0/lib/aws-sdk-athena/client.rb:262:in `initialize'
         5: from /Users/me/.rvm/gems/ruby-2.6.5/gems/aws-sdk-core-3.78.0/lib/seahorse/client/base.rb:19:in `initialize'
         4: from /Users/me/.rvm/gems/ruby-2.6.5/gems/aws-sdk-core-3.78.0/lib/seahorse/client/base.rb:62:in `build_config'
         3: from /Users/me/.rvm/gems/ruby-2.6.5/gems/aws-sdk-core-3.78.0/lib/seahorse/client/configuration.rb:149:in `build!'
         2: from /Users/me/.rvm/gems/ruby-2.6.5/gems/aws-sdk-core-3.78.0/lib/seahorse/client/configuration.rb:158:in `empty_struct'
         1: from /Users/me/.rvm/gems/ruby-2.6.5/gems/aws-sdk-core-3.78.0/lib/seahorse/client/configuration.rb:158:in `new'
/Users/me/.rvm/gems/ruby-2.6.5/gems/httparty-0.17.1/lib/httparty/module_inheritable_attributes.rb:42:in `inherited': undefined method `each' for nil:NilClass (NoMethodError)

在阅读了AWS的文档和教程之后，我仍然找不到问题。有什么不对的？

Answer 1

我发现问题是线include HTTParty。我在S3客户端之前声明了这一行，它现在起作用了：

require 'httparty'
require 'aws-sdk-s3'

Aws.config.update({
  region: 'us-east-1',
  credentials: Aws::Credentials.new('...', '...')
})
client = Aws::S3::Resource.new

include HTTParty

movies = self.class.get("#{HOST}/movies")