Ruby on rails Rails 4、回形针、Heroku和Amazon S3

我正在尝试使用S3存储的Heroku和回形针。我甚至在本地运行它都有问题，不过。。。我已使用此设置：

我完全遵循了它，但是当我尝试在本地上传文件时，我收到了这个错误。我正在使用AJAX和remotipart gem上传它们，如果这有什么不同，我们将不胜感激！以下是我尝试上载文件时的服务器日志：

Started POST "/welcome/upload_avatar" for 192.168.1.2 at 2014-01-17 03:45:03 -0800
Processing by WelcomeController#upload_avatar as JS
  Parameters: {"utf8"=>"✓", "authenticity_token"=>"R7WD+4IbWzm2s0d/XGnrMB+36nHEoRG35ZHcUDTD7iw=", "remotipart_submitted"=>"true", "X-Requested-With"=>"IFrame", "X-Http-Accept"=>"text/javascript, application/javascript, application/ecmascript, application/x-ecmascript, */*; q=0.01", "temp_avatar"=>{"avatar"=>#<ActionDispatch::Http::UploadedFile:0x007f3dbc974360 @tempfile=#<File:/tmp/RackMultipart20140117-55338-1412d8u>, @original_filename="mogwai.jpg", @content_type="image/jpeg", @headers="Content-Disposition: form-data; name=\"temp_avatar[avatar]\"; filename=\"mogwai.jpg\"\r\nContent-Type: image/jpeg\r\n">}}
Command :: identify -format '%wx%h,%[exif:orientation]' '/tmp/mogwai20140117-55338-61cjjj.jpg[0]'
Command :: identify -format %m '/tmp/mogwai20140117-55338-61cjjj.jpg[0]'
Command :: identify -format %m '/tmp/mogwai20140117-55338-61cjjj.jpg[0]'
Command :: identify -format %m '/tmp/mogwai20140117-55338-61cjjj.jpg[0]'
Command :: convert '/tmp/mogwai20140117-55338-61cjjj.jpg[0]' -auto-orient -resize "300x300>" '/tmp/mogwai20140117-55338-61cjjj20140117-55338-1qle1sa'
Command :: file -b --mime '/tmp/mogwai20140117-55338-61cjjj20140117-55338-1qle1sa'
Command :: identify -format '%wx%h,%[exif:orientation]' '/tmp/mogwai20140117-55338-61cjjj.jpg[0]'
Command :: identify -format %m '/tmp/mogwai20140117-55338-61cjjj.jpg[0]'
Command :: identify -format %m '/tmp/mogwai20140117-55338-61cjjj.jpg[0]'
Command :: identify -format %m '/tmp/mogwai20140117-55338-61cjjj.jpg[0]'
Command :: convert '/tmp/mogwai20140117-55338-61cjjj.jpg[0]' -auto-orient -resize "100x100>" '/tmp/mogwai20140117-55338-61cjjj20140117-55338-1u3rswg'
Command :: file -b --mime '/tmp/mogwai20140117-55338-61cjjj20140117-55338-1u3rswg'
   (0.2ms)  begin transaction
Binary data inserted for `string` type on column `avatar_content_type`
  SQL (1.0ms)  INSERT INTO "temp_avatars" ("avatar_content_type", "avatar_file_name", "avatar_file_size", "avatar_updated_at", "created_at", "updated_at") VALUES (?, ?, ?, ?, ?, ?)  [["avatar_content_type", "image/jpeg"], ["avatar_file_name", "mogwai.jpg"], ["avatar_file_size", 24307], ["avatar_updated_at", Fri, 17 Jan 2014 11:45:03 UTC +00:00], ["created_at", Fri, 17 Jan 2014 11:45:03 UTC +00:00], ["updated_at", Fri, 17 Jan 2014 11:45:03 UTC +00:00]]
[paperclip] saving /temp_avatars/avatars/000/000/085/original/mogwai.jpg
   (0.2ms)  rollback transaction
Completed 500 Internal Server Error in 267ms

LoadError (libexslt.so.0: cannot open shared object file: No such file or directory - /usr/lib/ruby/gems/1.9.1/gems/nokogiri-1.6.1/lib/nokogiri/nokogiri.so):
  app/controllers/welcome_controller.rb:20:in `block in upload_avatar'
  app/controllers/welcome_controller.rb:19:in `upload_avatar'


  Rendered /usr/lib/ruby/gems/1.9.1/gems/actionpack-4.0.0/lib/action_dispatch/middleware/templates/rescues/_source.erb (0.6ms)
  Rendered /usr/lib/ruby/gems/1.9.1/gems/actionpack-4.0.0/lib/action_dispatch/middleware/templates/rescues/_trace.erb (1.0ms)
  Rendered /usr/lib/ruby/gems/1.9.1/gems/actionpack-4.0.0/lib/action_dispatch/middleware/templates/rescues/_request_and_response.erb (1.1ms)
  Rendered /usr/lib/ruby/gems/1.9.1/gems/actionpack-4.0.0/lib/action_dispatch/middleware/templates/rescues/diagnostics.erb within rescues/layout (11.8ms)

于2014-01-17 03:45:03-0800开始为192.168.1.2发布“/欢迎/上传虚拟形象”
WelcomeController处理#上传#化身为JS
参数：{“utf8”=>“✓", "真实性令牌“=>”R7WD+4IbWzm2s0d/XGnrMB+36NHORG35ZHCUDTD7IW=”，“RemotipPart”提交“=>”真“，“X-Requested-带“=>”IFrame“，”X-Http-Accept“=>”文本/javascript，应用程序/javascript，应用程序/ecmascript，应用程序/X-ecmascript，*/*；q=0.01”，“临时化身”=>{“化身”=>“化身”=>
命令：：标识-格式“%wx%h，%[exif:orientation]”/tmp/mogwai20140117-55338-61cjjj.jpg[0]'
命令：：标识-格式%m'/tmp/mogwai20140117-55338-61cjjj.jpg[0]'
命令：：标识-格式%m'/tmp/mogwai20140117-55338-61cjjj.jpg[0]'
命令：：标识-格式%m'/tmp/mogwai20140117-55338-61cjjj.jpg[0]'
命令：：转换“/tmp/mogwai20140117-55338-61cjjjj.jpg[0]”-自动定向-调整“300x300>”大小“/tmp/mogwai20140117-55338-61cjjj201417-55338-1qle1sa”
命令：：file-b--mime'/tmp/mogwai20140117-55338-61cjjj20140117-55338-1qle1sa'
命令：：标识-格式“%wx%h，%[exif:orientation]”/tmp/mogwai20140117-55338-61cjjj.jpg[0]'
命令：：标识-格式%m'/tmp/mogwai20140117-55338-61cjjj.jpg[0]'
命令：：标识-格式%m'/tmp/mogwai20140117-55338-61cjjj.jpg[0]'
命令：：标识-格式%m'/tmp/mogwai20140117-55338-61cjjj.jpg[0]'
命令：：转换“/tmp/mogwai20140117-55338-61cjjjj.jpg[0]”-自动定向-调整“100x100>”大小“/tmp/mogwai20140117-55338-61cjjj201417-55338-1u3rswg”
命令：：file-b--mime'/tmp/mogwai20140117-55338-61CJJJ201401117-55338-1u3rswg'
（0.2ms）开始事务处理
在“头像内容”列上为“字符串”类型插入的二进制数据`
SQL（1.0ms）插入“临时化身”（“化身内容类型”、“化身文件名称”、“化身文件大小”、“更新的化身位置”、“创建的化身位置”、“更新的化身位置”）值（？，，，，，，，？，？，？）[[“化身内容类型”、“图像/jpeg”]，[“化身文件名称”、“mogwai.jpg”]，[“化身文件大小”，24307]，“更新的化身位置”，2014年1月17日星期五11:45:00+UTC][“创建时间”，2014年1月17日星期五11:45:03 UTC+00:00），“更新时间”，2014年1月17日星期五11:45:03 UTC+00:00]]
[回形针]保存/temp_avatars/avatars/000/000/085/original/mogwai.jpg
（0.2ms）回滚事务
267ms内完成500个内部服务器错误
LoadError（libexslt.so.0:无法打开共享对象文件：没有这样的文件或目录-/usr/lib/ruby/gems/1.9.1/gems/nokogiri-1.6.1/lib/nokogiri/nokogiri.so）：
app/controllers/welcome_controller.rb:20:in‘block in upload_avatar’
app/controllers/welcome\u controller.rb:19:in'upload\u avatar'
Rendered/usr/lib/ruby/gems/1.9.1/gems/actionpack-4.0.0/lib/action\u dispatch/middleware/templates/rescues//u source.erb（0.6ms）
Rendered/usr/lib/ruby/gems/1.9.1/gems/actionpack-4.0.0/lib/action\u dispatch/middleware/templates/rescues//u trace.erb（1.0ms）
Rendered/usr/lib/ruby/gems/1.9.1/gems/actionpack-4.0.0/lib/action\u dispatch/middleware/templates/rescues//u request\u and\u response.erb（1.1ms）
rescues/layout中呈现的/usr/lib/ruby/gems/1.9.1/gems/actionpack-4.0.0/lib/action\u dispatch/middleware/templates/rescues/diagnostics.erb（11.8ms）

听起来好像它在抱怨找不到nokogiri…nokogiri安装了吗？在ruby环境中，只需运行

gem安装nokogiri