Question

我正在尝试使用Carrierwave在Sinatra中运行一个简单的图像上传器类。我已经使用了几乎完全相同的代码并在Gemfile中指定了相同的行，但在运行$ bundle install并且所有安装都没有问题之后，我从以下代码中获得了一个LoadError：

的Gemfile：

source 'https://rubygems.org'

ruby '1.9.3'

gem 'sinatra'
gem 'sinatra-contrib'
gem 'rack'
gem 'thin'
gem "mongo_mapper"
gem 'bson_ext'

# Image uploading to S3
gem "fog", "~> 1.3.1"
gem 'carrierwave'
gem 'rmagick', '2.13.2', :git=>'http://github.com/rmagick/rmagick.git', :require=>'RMagick'

CarrierWave配置文件：

# Configure Carrierwave Uploads to Amazon S3
CarrierWave.configure do |config|
  config.fog_credentials = {
    :provider               => 'AWS',                        # required
    :aws_access_key_id      => '(never mind about this)',                        # required
    :aws_secret_access_key  => '(or this)'                        # required
    #:region                 => 'eu-west-1',                  # optional, defaults to 'us-east-1'
    #:host                   => 's3.example.com',             # optional, defaults to nil
    #:endpoint               => 'https://s3.example.com:8080' # optional, defaults to nil
  }
  config.fog_directory  = 'penumbra-images'                     # required
  config.fog_attributes = {'Cache-Control'=>'max-age=315576000'}  # optional, defaults to {}

end

ImageUploader类定义：

class ImageUploader < CarrierWave::Uploader::Base
  include CarrierWave::RMagick
  process :resize_to_fit => [1024, 1024]
  storage :fog
end

我的结果：

$ ruby app.rb
CarrierWave::Uploader::Base
/Users/duncanmalashock/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/site_ruby/1.9.1/rubygems/core_ext/kernel_require.rb:124:in `require': cannot load such file -- RMagick (LoadError)
    from /Users/duncanmalashock/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/site_ruby/1.9.1/rubygems/core_ext/kernel_require.rb:124:in `require'
    from /Users/duncanmalashock/.rvm/gems/ruby-1.9.3-p448/gems/carrierwave-0.9.0/lib/carrierwave/processing/rmagick.rb:67:in `rescue in block in <module:RMagick>'
    from /Users/duncanmalashock/.rvm/gems/ruby-1.9.3-p448/gems/carrierwave-0.9.0/lib/carrierwave/processing/rmagick.rb:64:in `block in <module:RMagick>'
    from /Users/duncanmalashock/.rvm/gems/ruby-1.9.3-p448/gems/activesupport-3.2.14/lib/active_support/concern.rb:121:in `class_eval'
    from /Users/duncanmalashock/.rvm/gems/ruby-1.9.3-p448/gems/activesupport-3.2.14/lib/active_support/concern.rb:121:in `append_features'
    from /Users/duncanmalashock/Generator/init/uploader.rb:2:in `include'
    from /Users/duncanmalashock/Generator/init/uploader.rb:2:in `<class:ImageUploader>'
    from /Users/duncanmalashock/Generator/init/uploader.rb:1:in `<top (required)>'
    from /Users/duncanmalashock/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/site_ruby/1.9.1/rubygems/core_ext/kernel_require.rb:124:in `require'
    from /Users/duncanmalashock/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/site_ruby/1.9.1/rubygems/core_ext/kernel_require.rb:124:in `require'
    from app.rb:7:in `<main>'

有人可以帮忙吗？非常感谢。

Answer 1

在你的Gemfile中，你已经指定了RMagick的git版本。 Bundler需要一些特殊的步骤来将这些库添加到Ruby的加载路径中，但是在没有Bundler的情况下运行时它们不可用，因为它们不是普通的gem。当您使用ruby app.rb运行没有Bunder的应用程序时，Bundler无法将此项目添加到加载路径，因此您会收到LoadError。

要解决此问题，请确保使用Bundler来运行您的应用：

$ bundle exec ruby app.rb

或者，您可以在代码中设置Bundler。添加

require 'bundler/setup'

到app.rb的顶部，每次运行时都会设置Bundler。

Sinatra＆amp; Carrierwave：在`require'：无法加载这样的文件 - RMagick（LoadError）

1 个答案: