Ubuntu Rails 4 Paperclip::Errors::NotIdentifiedByImageMagickError

Question

我见过类似的帖子出现这个错误，但他们都没有解决我的问题。我使用的是ImageMagick (6.9.0.8)和纸夹上传图片到我的Rails 4应用程序。它可以在我的开发机器上运行，但不能在我的DigitalOcean账户(Ubuntu14.04，Nginx，Unicorn)上运行。当回形针尝试保存不同大小的图像时，ImageMagick显示错误：

Paperclip::Errors::NotIdentifiedByImageMagickError

我用的是回形针4.2.1和可卡因.0.5.5宝石。在我的Rails模型中，我有：

has_attached_file :photo_image, :styles => { :medium => "330x250#", :small => "150x120#", :thumb => "120x100#" }, 
                            :url => "/system/dadverts/:attachment/:id/:style/:filename",
                            :path => ":rails_root/public/system/dadverts/:attachment/:id/:style/:filename",
                            :default_url => "300250ad.png"

validates_attachment_content_type :photo_image, :content_type => /\Aimage/

在我的生产环境设置中，我有：

Processing by AdvertisementsController#create as HTML
I, INFO -- :   Parameters: {"utf8"=>"✓", "authenticity_token"=>"8hHWBxpydUyA1MEucXtnSvvRvHc38LcM1hbb8Is/cd4=", "advertisement"=>{"customer_name"=>"Kayak Venice", "ad_network_name"=>"Recon Outpost", "sitead_location_id"=>"1", "publish_date(1i)"=>"2015", "publish_date(2i)"=>"3", "publish_date(3i)"=>"14", "expiration_date(1i)"=>"2020", "expiration_date(2i)"=>"3", "expiration_date(3i)"=>"14", "keywords_alt_text"=>"", "sort_order"=>"1", "local_ad"=>"0", "zipcode"=>"00000", "photo_image"=>#<ActionDispatch::Http::UploadedFile:0x00000005c93038 @tempfile=#<Tempfile:/tmp/RackMultipart20150314-2186-1jc6u31>, @original_filename="KayakLogoConcept3.png", @content_type="image/png", @headers="Content-Disposition: form-data; name=\"advertisement[photo_image]\"; filename=\"KayakLogoConcept3.png\"\r\nContent-Type: image/png\r\n">, "render_options"=>"1", "click_thru_url"=>"", "external_media_embed"=>""}, "advertisment"=>{"publish"=>"0"}, "commit"=>"Create Advertisement"}
I,  INFO -- : Command :: PATH=/usr/local/bin/:$PATH file -b --mime '/tmp/af961aaf697aaa71682a6e9716d6034520150314-2186-pxyhur.png'
I,  INFO -- : Command :: PATH=/usr/local/bin/:$PATH identify -format '%wx%h,%[exif:orientation]' '/tmp/af961aaf697aaa71682a6e9716d6034520150314-2186-o1r33b.png[0]' 2>/dev/null
I,  INFO -- : [paperclip] An error was received while processing: #<Paperclip::Errors::NotIdentifiedByImageMagickError: Paperclip::Errors::NotIdentifiedByImageMagickError>
I,  INFO -- : Command :: PATH=/usr/local/bin/:$PATH identify -format '%wx%h,%[exif:orientation]' '/tmp/af961aaf697aaa71682a6e9716d6034520150314-2186-o1r33b.png[0]' 2>/dev/null
I,  INFO -- : [paperclip] An error was received while processing: #<Paperclip::Errors::NotIdentifiedByImageMagickError: Paperclip::Errors::NotIdentifiedByImageMagickError>
I,  INFO -- : Command :: PATH=/usr/local/bin/:$PATH identify -format '%wx%h,%[exif:orientation]' '/tmp/af961aaf697aaa71682a6e9716d6034520150314-2186-o1r33b.png[0]' 2>/dev/null
I,  INFO -- : [paperclip] An error was received while processing: #<Paperclip::Errors::NotIdentifiedByImageMagickError: Paperclip::Errors::NotIdentifiedByImageMagickError>
I,  INFO -- : Command :: PATH=/usr/local/bin/:$PATH file -b --mime '/tmp/af961aaf697aaa71682a6e9716d6034520150314-2186-91e4eo.png'
I,  INFO -- : Command :: PATH=/usr/local/bin/:$PATH identify -format '%wx%h,%[exif:orientation]' '/tmp/af961aaf697aaa71682a6e9716d6034520150314-2186-fwjtt8.png[0]' 2>/dev/null
I,  INFO -- : [paperclip] An error was received while processing: #<Paperclip::Errors::NotIdentifiedByImageMagickError: Paperclip::Errors::NotIdentifiedByImageMagickError>
I,  INFO -- : Command :: PATH=/usr/local/bin/:$PATH identify -format '%wx%h,%[exif:orientation]' '/tmp/af961aaf697aaa71682a6e9716d6034520150314-2186-fwjtt8.png[0]' 2>/dev/null
I,  INFO -- : [paperclip] An error was received while processing: #<Paperclip::Errors::NotIdentifiedByImageMagickError: Paperclip::Errors::NotIdentifiedByImageMagickError>
I,  INFO -- : Command :: PATH=/usr/local/bin/:$PATH identify -format '%wx%h,%[exif:orientation]' '/tmp/af961aaf697aaa71682a6e9716d6034520150314-2186-fwjtt8.png[0]' 2>/dev/null
I,  INFO -- : [paperclip] An error was received while processing: #<Paperclip::Errors::NotIdentifiedByImageMagickError: Paperclip::Errors::NotIdentifiedByImageMagickError>
I,  INFO -- : Command :: PATH=/usr/local/bin/:$PATH file -b --mime '/tmp/af961aaf697aaa71682a6e9716d6034520150314-2186-k19vf3.png'
I,  INFO -- :   Rendered advertisements/_form.html.erb (65.2ms)

Answer 1

此错误类具有description

# Will be thrown when ImageMagic cannot determine the uploaded file's
# metadata, usually this would mean the file is not an image.

这意味着您正在尝试处理的不是图像文件。似乎这可能与临时文件的错误扩展名有关。看看这个文件扩展名：

af961aaf697aaa71682a6e9716d6034520150314-2186-o1r33b.png[0]

正如你所看到的，它已经结束了。因此，请尝试调查为什么会出现此扩展。看起来你使用的是基于可卡因的定制处理器。我认为问题可以与之相关。

Answer 2

这期有什么新内容吗？我遇到了同样的问题，并在github上打开了一个新的问题：

https://github.com/thoughtbot/cocaine/issues/84