wicked_pdf_stylesheet_link_tag＆＃39; application＆＃39;抛出404错误

Question

我使用wicked_pdf遇到了一个奇怪的错误。

我的Mac上从来没有遇到同样的问题， 但是在我的生产中心6.6 vps上，它会抛出 404错误：

wicked_pdf_stylesheet_link_tag 'application' 

我正在使用

gem 'rails', '4.1.6'
gem 'wkhtmltopdf-binary'
gem 'wicked_pdf', '~> 0.11.0'

我已尝试将application.css.scss或application.css添加到initializer/assets.rb

Rails.application.config.assets.version = '1.1'
# Precompile additional assets.
# application.js, application.css, and all non-JS/CSS in app/assets folder are already added.
# Rails.application.config.assets.precompile += %w( search.js )

Rails.application.config.assets.precompile += %w(*.svg *.eot *.woff *.ttf *.gif *.png *.ico)
Rails.application.config.assets.precompile += %w(application.css *.js *.css *.js.coffee)

但仍无效，

任何人都知道可以做些什么？

在我用作开发机器的ubuntu 14服务器上，

wicked_pdf_image_tag object.file1.file.path 

似乎导致pdf生成器挂起。

我评论过它，它有效。我已经检查了路径是否正确。

image_tag帮助程序也会出现问题，但以html格式显示时效果不错。

完整跟踪显示：

  

/usr/local/rvm/rubies/ruby-2.1.5/lib/ruby/2.1.0/open-uri.rb:353:in   open_http' /usr/local/rvm/rubies/ruby-2.1.5/lib/ruby/2.1.0/open-uri.rb:724:in buffer_open＆＃39;   /usr/local/rvm/rubies/ruby-2.1.5/lib/ruby/2.1.0/open-uri.rb:210:in   block in open_loop' /usr/local/rvm/rubies/ruby-2.1.5/lib/ruby/2.1.0/open-uri.rb:208:in 赶上＆＃39;   /usr/local/rvm/rubies/ruby-2.1.5/lib/ruby/2.1.0/open-uri.rb:208:in   open_loop' /usr/local/rvm/rubies/ruby-2.1.5/lib/ruby/2.1.0/open-uri.rb:149:in open_uri＆＃39;   /usr/local/rvm/rubies/ruby-2.1.5/lib/ruby/2.1.0/open-uri.rb:704:in   open' /usr/local/rvm/rubies/ruby-2.1.5/lib/ruby/2.1.0/open-uri.rb:34:in 开放＆＃39; wicked_pdf（0.11.0）lib / wicked_pdf / wicked_pdf_helper.rb:111:in   read_from_uri' wicked_pdf (0.11.0) lib/wicked_pdf/wicked_pdf_helper.rb:100:in read_asset＆＃39; wicked_pdf   （0.11.0）lib / wicked_pdf / wicked_pdf_helper.rb:40:in block in wicked_pdf_stylesheet_link_tag' wicked_pdf (0.11.0) lib/wicked_pdf/wicked_pdf_helper.rb:38:in收集＆＃39; wicked_pdf   （0.11.0）lib / wicked_pdf / wicked_pdf_helper.rb:38:in:   wicked_pdf_stylesheet_link_tag' app/views/layouts/pdf.html.slim:5:in _ app_views_layouts_pdf_html_slim ___ 1321156534865974876_43089880＆＃39;   actionview（4.1.6）lib / action_view / template.rb：145：在block in render' activesupport (4.1.6) lib/active_support/notifications.rb:161:in工具＆＃39;的ActionView   （4.1.6）lib / action_view / template.rb：339：在instrument' actionview (4.1.6) lib/action_view/template.rb:143:in渲染＆＃39; actionview（4.1.6）   LIB / ACTION_VIEW /渲染/ template_renderer.rb：67：在   render_with_layout' actionview (4.1.6) lib/action_view/renderer/template_renderer.rb:53:in render_template＆＃39;   actionview（4.1.6）lib / action_view / renderer / template_renderer.rb:17:in   render' actionview (4.1.6) lib/action_view/renderer/renderer.rb:42:in render_template＆＃39; actionview（4.1.6）   lib / action_view / renderer / renderer.rb：23：在render' actionview (4.1.6) lib/action_view/rendering.rb:99:in _ render_template＆＃39; ActionPack的   （4.1.6）lib / action_controller / metal / streaming.rb：217：in   _render_template' actionview (4.1.6) lib/action_view/rendering.rb:82:in render_to_body＆＃39; actionpack（4.1.6）   lib / action_controller / metal / rendering.rb：32：在render_to_body' actionpack (4.1.6) lib/action_controller/metal/renderers.rb:32:in render_to_body＆＃39; actionpack（4.1.6）   lib / abstract_controller / rendering.rb：43：在render_to_string' actionpack (4.1.6) lib/action_controller/metal/rendering.rb:21:in render_to_string＆＃39; wicked_pdf（0.11.0）   lib / wicked_pdf / pdf_helper.rb:34:in render_to_string_with_wicked_pdf' wicked_pdf (0.11.0) lib/wicked_pdf/pdf_helper.rb:61:in make_pdf＆＃39;   wicked_pdf（0.11.0）lib / wicked_pdf / pdf_helper.rb:32:in   render_to_string_with_wicked_pdf' app/controllers/concerns/has_pdf_response.rb:15:in respond_to_pdf＆＃39;   app / controllers / quotations_controller.rb:23:in block (2 levels) in show' actionpack (4.1.6) lib/action_controller/metal/mime_responds.rb:258:in来电＆＃39; ActionPack的   （4.1.6）lib / action_controller / metal / mime_responds.rb：258：in   respond_to' app/controllers/quotations_controller.rb:20:in节目＆＃39;   actionpack（4.1.6）lib / action_controller / metal / implicit_render.rb：4：in   send_action' actionpack (4.1.6) lib/abstract_controller/base.rb:189:in process_action＆＃39; ActionPack的   （4.1.6）lib / action_controller / metal / rendering.rb：10：in   进程中的process_action' actionpack (4.1.6) lib/abstract_controller/callbacks.rb:20:in阻止＆＃39;   activesupport（4.1.6）lib / active_support / callbacks.rb:113：call' activesupport (4.1.6) lib/active_support/callbacks.rb:113:in来电＆＃39;   activesupport（4.1.6）lib / active_support / callbacks.rb:166:in block in halting' activesupport (4.1.6) lib/active_support/callbacks.rb:166:in call＆＃39; activesupport（4.1.6）lib / active_support / callbacks.rb:166:in   block in halting' activesupport (4.1.6) lib/active_support/callbacks.rb:149:in呼叫＆＃39; activesupport（4.1.6）   lib / active_support / callbacks.rb:149：在block in halting_and_conditional' activesupport (4.1.6) lib/active_support/callbacks.rb:229:in来电＆＃39; activesupport（4.1.6）   lib / active_support / callbacks.rb：229：block in halting' activesupport (4.1.6) lib/active_support/callbacks.rb:229:in来电＆＃39;   activesupport（4.1.6）lib / active_support / callbacks.rb:229:in block in halting' activesupport (4.1.6) lib/active_support/callbacks.rb:166:in call＆＃39; activesupport（4.1.6）lib / active_support / callbacks.rb:166:in   block in halting' activesupport (4.1.6) lib/active_support/callbacks.rb:166:in呼叫＆＃39; activesupport（4.1.6）   lib / active_support / callbacks.rb:166:in block in halting' activesupport (4.1.6) lib/active_support/callbacks.rb:166:in来电＆＃39;   activesupport（4.1.6）lib / active_support / callbacks.rb:166:in block in halting' activesupport (4.1.6) lib/active_support/callbacks.rb:229:in call＆＃39; activesupport（4.1.6）lib / active_support / callbacks.rb：229：in   block in halting' activesupport (4.1.6) lib/active_support/callbacks.rb:166:in呼叫＆＃39; activesupport（4.1.6）   lib / active_support / callbacks.rb:166:in block in halting' activesupport (4.1.6) lib/active_support/callbacks.rb:166:in来电＆＃39;   activesupport（4.1.6）lib / active_support / callbacks.rb:166:in block in halting' activesupport (4.1.6) lib/active_support/callbacks.rb:229:in call＆＃39; activesupport（4.1.6）lib / active_support / callbacks.rb：229：in   block in halting' activesupport (4.1.6) lib/active_support/callbacks.rb:166:in呼叫＆＃39; activesupport（4.1.6）   lib / active_support / callbacks.rb:166:in block in halting' activesupport (4.1.6) lib/active_support/callbacks.rb:166:in来电＆＃39;   activesupport（4.1.6）lib / active_support / callbacks.rb:166:in block in halting' activesupport (4.1.6) lib/active_support/callbacks.rb:166:in call＆＃39; activesupport（4.1.6）lib / active_support / callbacks.rb:166:in   block in halting' activesupport (4.1.6) lib/active_support/callbacks.rb:166:in呼叫＆＃39; activesupport（4.1.6）   lib / active_support / callbacks.rb:166:in block in halting' activesupport (4.1.6) lib/active_support/callbacks.rb:86:in来电＆＃39;   activesupport（4.1.6）lib / active_support / callbacks.rb:86:in   run_callbacks' actionpack (4.1.6) lib/abstract_controller/callbacks.rb:19:in process_action＆＃39; ActionPack的   （4.1.6）lib / action_controller / metal / rescue.rb：29：在process_action' actionpack (4.1.6) lib/action_controller/metal/instrumentation.rb:31:in块中   process_action＆＃39; activesupport（4.1.6）   lib / active_support / notifications.rb：159：在block in instrument' activesupport (4.1.6) lib/active_support/notifications/instrumenter.rb:20:in工具＆＃39;   activesupport（4.1.6）lib / active_support / notifications.rb:159：in   instrument' actionpack (4.1.6) lib/action_controller/metal/instrumentation.rb:30:in process_action＆＃39;   actionpack（4.1.6）   lib / action_controller / metal / params_wrapper.rb：250：在process_action' activerecord (4.1.6) lib/active_record/railties/controller_runtime.rb:18:in process_action＆＃39; actionpack（4.1.6）   lib / abstract_controller / base.rb：136：在process' actionview (4.1.6) lib/action_view/rendering.rb:30:in进程＆＃39; actionpack（4.1.6）   lib / action_controller / metal.rb：196：在dispatch' actionpack (4.1.6) lib/action_controller/metal/rack_delegation.rb:13:in发送＆＃39;   actionpack（4.1.6）lib / action_controller / metal.rb：232：在block in action' actionpack (4.1.6) lib/action_dispatch/routing/route_set.rb:82:in调用＆＃39; ActionPack的   （4.1.6）lib / action_dispatch / routing / route_set.rb:82:in dispatch' actionpack (4.1.6) lib/action_dispatch/routing/route_set.rb:50:in call＆＃39; actionpack（4.1.6）lib / action_dispatch / journey / router.rb：73：in   block in call' actionpack (4.1.6) lib/action_dispatch/journey/router.rb:59:in各＆＃39; actionpack（4.1.6）   lib / action_dispatch / journey / router.rb：59：call' actionpack (4.1.6) lib/action_dispatch/routing/route_set.rb:678:in来电＆＃39;机架pjax   （0.8.0）lib / rack / pjax.rb:12:in call' warden (1.2.3) lib/warden/manager.rb:35:in阻止通话＆＃39;监狱长（1.2.3）   lib / warden / manager.rb:34:in catch' warden (1.2.3) lib/warden/manager.rb:34:in来电＆＃39; rack（1.5.2）lib / rack / etag.rb:23:in   call' rack (1.5.2) lib/rack/conditionalget.rb:25:in呼叫＆＃39;架   （1.5.2）lib / rack / head.rb:11:in call' remotipart (1.2.1) lib/remotipart/middleware.rb:27:in来电＆＃39; actionpack（4.1.6）   lib / action_dispatch / middleware / params_parser.rb:27:in call' actionpack (4.1.6) lib/action_dispatch/middleware/flash.rb:254:in 来电＆＃39; rack（1.5.2）lib / rack / session / abstract / id.rb:225：在context' rack (1.5.2) lib/rack/session/abstract/id.rb:220:in电话＆＃39; ActionPack的   （4.1.6）lib / action_dispatch / middleware / cookies.rb：560：在call' activerecord (4.1.6) lib/active_record/query_cache.rb:36:in电话＆＃39;   activerecord（4.1.6）   LIB / active_record / connection_adapters /抽象/ connection_pool.rb：621：在   call' actionpack (4.1.6) lib/action_dispatch/middleware/callbacks.rb:29:in阻止通话＆＃39;   activesupport（4.1.6）lib / active_support / callbacks.rb:82:in   run_callbacks' actionpack (4.1.6) lib/action_dispatch/middleware/callbacks.rb:27:in呼叫＆＃39; ActionPack的   （4.1.6）lib / action_dispatch / middleware / reloader.rb：73：在call' actionpack (4.1.6) lib/action_dispatch/middleware/remote_ip.rb:76:in 电话＆＃39; actionpack（4.1.6）   lib / action_dispatch / middleware / debug_exceptions.rb:17:in call' actionpack (4.1.6) lib/action_dispatch/middleware/show_exceptions.rb:30:in call＆＃39;   railties（4.1.6）lib / rails / rack / logger.rb:38:in call_app' railties (4.1.6) lib/rails/rack/logger.rb:20:in阻止电话＆＃39;的ActiveSupport   （4.1.6）lib / active_support / tagged_logging.rb：68：在block in tagged' activesupport (4.1.6) lib/active_support/tagged_logging.rb:26:in 标记的＆＃39; activesupport（4.1.6）   lib / active_support / tagged_logging.rb:68:in tagged' railties (4.1.6) lib/rails/rack/logger.rb:20:in来电＆＃39; actionpack（4.1.6）   lib / action_dispatch / middleware / request_id.rb:21:in call' rack (1.5.2) lib/rack/methodoverride.rb:21:in来电＆＃39;机架（1.5.2）   lib / rack / runtime.rb:17:in call' activesupport (4.1.6) lib/active_support/cache/strategy/local_cache_middleware.rb:26:in call＆＃39; rack（1.5.2）lib / rack / lock.rb:17:in call' actionpack (4.1.6) lib/action_dispatch/middleware/static.rb:64:in call＆＃39;机架（1.5.2）   lib / rack / sendfile.rb：112：call' railties (4.1.6) lib/rails/engine.rb:514:in来电＆＃39;铁路（4.1.6）   lib / rails / application.rb：144：在call' passenger (4.0.56) lib/phusion_passenger/rack/thread_handler_extension.rb:74:in process_request＆＃39;乘客（4.0.56）   LIB / phusion_passenger / request_handler / thread_handler.rb：141：在   accept_and_process_next_request' passenger (4.0.56) lib/phusion_passenger/request_handler/thread_handler.rb:109:in 中main_loop＆＃39;乘客（4.0.56）   lib / phusion_passenger / request_handler.rb：455：在`block（3个级别）中   start_threads＆＃39;

Answer 1

事实证明，当我打电话时，我已经指出了我的图像的绝对路径 的 wicked_pdf_image_tag 该功能实际指向     root_path.join（＆＃39; 公开＆＃39;，＆＃39; 图片＆＃39;）

解决方案是创建一个新方法或只使用此代码：     image_tag＆＃34; file：// absolute_path_to_img_here＆＃34;，options

[http://www.rubydoc.info/github/mileszs/wicked_pdf/WickedPdfHelper%3Awicked_pdf_image_tag][1]