Ruby on rails getaddrinfo名称或服务未知套接字错误s3 fog carrierwave Figaro

我在使用AmazonS3服务时遇到了问题

错误是

Excon::Errors::SocketError in PhotosController#create 
getaddrinfo: Name or service not known (SocketError)}

尝试保存图像时发生此错误

config/initializers/carrierwave.rb

CarrierWave.configure do |config|
config.fog_credentials = {
:provider               => 'AWS',                        
:aws_access_key_id      => 'XXXXX',                        
:aws_secret_access_key  => 'YYYYY',                        
:region                 => 'us-east-1',                  
:host                   => 's3.example.com',             
:endpoint               => 'https://s3.example.com:8080' 

class PictureUploader < CarrierWave::Uploader::Base

storage :fog


def store_dir
'uploads/data'
end


end

}

结束

我用的是费加罗宝石

config/application.yml

SECRET_KEY_BASE: aaaaaa 
AWS_ACCES_KEY_ID: XXXXXX
AWS_SECRET_ACCESS_KEY: YYYYYY
AWS_BUCKET: "My_bucket_name"

Gemfile

gem 'rails', '4.1.4'
gem 'mysql2'
gem 'carrierwave'
gem 'fog'
gem 'aws-sdk'
gem "figaro"

app/uploaders/picture\u uploader.rb

CarrierWave.configure do |config|
config.fog_credentials = {
:provider               => 'AWS',                        
:aws_access_key_id      => 'XXXXX',                        
:aws_secret_access_key  => 'YYYYY',                        
:region                 => 'us-east-1',                  
:host                   => 's3.example.com',             
:endpoint               => 'https://s3.example.com:8080' 

class PictureUploader < CarrierWave::Uploader::Base

storage :fog


def store_dir
'uploads/data'
end


end

class PictureUploader

我关注这个网站，没有对其他配置做任何更改

我已将我的应用程序部署到heroku。我想将图像/视频上传到该应用程序。 有人能帮助我或建议我如何使用carrierwave将图像/视频上传到heroku吗

---

感谢advance

这是因为没有这样的主机：

s3.example.com

从

config.fog\u凭据中删除
host
和
endpoint
键