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名称错误：未初始化的常量CarrierWave :: Storage :: Fog

ruby-on-railsruby-on-rails-4carrierwavefogfog-aws
5

我尝试了stackoverflow和github上提供的几种解决方案，但是都找不到解决方法。我在我的应用程序中使用carrierwave（0.10.0）和fog-aws（0.8.1）宝石上传图片到S3。

NameError: uninitialized constant CarrierWave::Storage::Fog
from /home/pulkit/.rvm/gems/ruby-2.3.0/gems/carrierwave-0.10.0/lib/carrierwave/uploader/configuration.rb:73:in `eval'
from /home/pulkit/.rvm/gems/ruby-2.3.0/gems/carrierwave-0.10.0/lib/carrierwave/uploader/configuration.rb:73:in `eval'
from /home/pulkit/.rvm/gems/ruby-2.3.0/gems/carrierwave-0.10.0/lib/carrierwave/uploader/configuration.rb:73:in `storage'
from /home/pulkit/dev/roid/rails/appbrowzer/app/uploaders/publisher_action_icon_uploader.rb:11:in `<class:PublisherActionIconUploader>'
from /home/pulkit/dev/roid/rails/appbrowzer/app/uploaders/publisher_action_icon_uploader.rb:3:in `<top (required)>'
from /home/pulkit/dev/roid/rails/appbrowzer/app/models/manage_channel_action.rb:3:in `<class:ManageChannelAction>'
from /home/pulkit/dev/roid/rails/appbrowzer/app/models/manage_channel_action.rb:1:in `<top (required)>'
from (irb):1
from /home/pulkit/.rvm/gems/ruby-2.3.0/gems/railties-4.2.5/lib/rails/commands/console.rb:110:in `start'
from /home/pulkit/.rvm/gems/ruby-2.3.0/gems/railties-4.2.5/lib/rails/commands/console.rb:9:in `start'
from /home/pulkit/.rvm/gems/ruby-2.3.0/gems/railties-4.2.5/lib/rails/commands/commands_tasks.rb:68:in `console'
from /home/pulkit/.rvm/gems/ruby-2.3.0/gems/railties-4.2.5/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
from /home/pulkit/.rvm/gems/ruby-2.3.0/gems/railties-4.2.5/lib/rails/commands.rb:17:in `<top (required)>'
from bin/rails:9:in `require'
from bin/rails:9:in `<main>'

当我尝试使用 fog（1.37.0） 宝石代替 fog-aws 宝石时，就会出现不同的错误。

ArgumentError:  is not a recognized provider
    from /home/pulkit/.rvm/gems/ruby-2.3.0/gems/fog-core-1.35.0/lib/fog/core/services_mixin.rb:12:in `new'
    from /home/pulkit/.rvm/gems/ruby-2.3.0/gems/fog-core-1.35.0/lib/fog/storage.rb:27:in `new'
    from /home/pulkit/.rvm/gems/ruby-2.3.0/gems/carrierwave-0.10.0/lib/carrierwave/storage/fog.rb:102:in `connection'
    from /home/pulkit/.rvm/gems/ruby-2.3.0/gems/carrierwave-0.10.0/lib/carrierwave/storage/fog.rb:356:in `connection'
    from /home/pulkit/.rvm/gems/ruby-2.3.0/gems/carrierwave-0.10.0/lib/carrierwave/storage/fog.rb:368:in `directory'
    from /home/pulkit/.rvm/gems/ruby-2.3.0/gems/carrierwave-0.10.0/lib/carrierwave/storage/fog.rb:261:in `store'
    from /home/pulkit/.rvm/gems/ruby-2.3.0/gems/carrierwave-0.10.0/lib/carrierwave/storage/fog.rb:80:in `store!'
    from /home/pulkit/.rvm/gems/ruby-2.3.0/gems/carrierwave-0.10.0/lib/carrierwave/uploader/store.rb:59:in `block in store!'
    from /home/pulkit/.rvm/gems/ruby-2.3.0/gems/carrierwave-0.10.0/lib/carrierwave/uploader/callbacks.rb:17:in `with_callbacks'
    from /home/pulkit/.rvm/gems/ruby-2.3.0/gems/carrierwave-0.10.0/lib/carrierwave/uploader/store.rb:58:in `store!'
    from /home/pulkit/.rvm/gems/ruby-2.3.0/gems/carrierwave-0.10.0/lib/carrierwave/mount.rb:375:in `store!'
    from /home/pulkit/.rvm/gems/ruby-2.3.0/gems/carrierwave-0.10.0/lib/carrierwave/mount.rb:207:in `store_icon!'
    from /home/pulkit/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.5/lib/active_support/callbacks.rb:432:in `block in make_lambda'
    from /home/pulkit/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.5/lib/active_support/callbacks.rb:228:in `block in halting_and_conditional'
    from /home/pulkit/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.5/lib/active_support/callbacks.rb:506:in `block in call'
    from /home/pulkit/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.5/lib/active_support/callbacks.rb:506:in `each'
... 10 levels...
    from /home/pulkit/.rvm/gems/ruby-2.3.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/abstract/transaction.rb:184:in `within_new_transaction'
    from /home/pulkit/.rvm/gems/ruby-2.3.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/abstract/database_statements.rb:213:in `transaction'
    from /home/pulkit/.rvm/gems/ruby-2.3.0/gems/activerecord-4.2.5/lib/active_record/transactions.rb:220:in `transaction'
    from /home/pulkit/.rvm/gems/ruby-2.3.0/gems/activerecord-4.2.5/lib/active_record/transactions.rb:348:in `with_transaction_returning_status'
    from /home/pulkit/.rvm/gems/ruby-2.3.0/gems/activerecord-4.2.5/lib/active_record/transactions.rb:286:in `block in save'
    from /home/pulkit/.rvm/gems/ruby-2.3.0/gems/activerecord-4.2.5/lib/active_record/transactions.rb:301:in `rollback_active_record_state!'
    from /home/pulkit/.rvm/gems/ruby-2.3.0/gems/activerecord-4.2.5/lib/active_record/transactions.rb:285:in `save'
    from /home/pulkit/.rvm/gems/ruby-2.3.0/gems/activerecord-4.2.5/lib/active_record/persistence.rb:34:in `create'
    from (irb):1
    from /home/pulkit/.rvm/gems/ruby-2.3.0/gems/railties-4.2.5/lib/rails/commands/console.rb:110:in `start'
    from /home/pulkit/.rvm/gems/ruby-2.3.0/gems/railties-4.2.5/lib/rails/commands/console.rb:9:in `start'
    from /home/pulkit/.rvm/gems/ruby-2.3.0/gems/railties-4.2.5/lib/rails/commands/commands_tasks.rb:68:in `console'
    from /home/pulkit/.rvm/gems/ruby-2.3.0/gems/railties-4.2.5/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
    from /home/pulkit/.rvm/gems/ruby-2.3.0/gems/railties-4.2.5/lib/rails/commands.rb:17:in `<top (required)>'
    from bin/rails:9:in `require'
    from bin/rails:9:in `<main>'2.3.0 :002 >
5个回答
2

请将您的gemfile从gem "fog-aws"更新为gem 'fog'，require：'fog/aws'。

现在我遇到了 ArgumentError: is not a recognized provider 的错误。 - Pulkit Agarwal
这不是正确的解决方案。gem 'fog-aws'可以工作。你只需要确保carrierwave配置在config/initializers/carrierwave.rb中。 - Daniel Viglione
2
确保你的配置文件（carrierwave.rb）在initializers文件夹中。
1
通过在我的Gemfile中添加Fog gem解决了这个问题。
gem 'fog', require: 'fog/aws'

根据fog-aws gem所述，从lib/carrierwave/storage/fog.rb中删除配置文件，并将carrierwave配置放置在config/initializers/carrierwave.rb中。

CarrierWave.configure do |config|
  config.fog_credentials = {
    :provider               => 'AWS',
    :aws_access_key_id      => 'XYZ',
    :aws_secret_access_key  => 'ABC',
    :region                 => 'region'
  }
  config.fog_directory  = 'bucket_name'
end
1
无法工作。应用程序已配置为文件存储，但未配置为S3。 - aashish
这不是正确的解决方案。gem 'fog-aws'是可以工作的。你只需要确保carrierwave配置在config/initializers/carrierwave.rb中。 - Daniel Viglione
0
0
对我来说，这个问题通过将 Carrierwave 初始化器中的 config.storage = :fog 放在 config.fog_credentials = ... 行之后解决了。

通过 @mshibuya

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