ruby-on-rails - Windows 上 Paperclip 和 JRuby 的路径错误

Question

我正在学习 Paperclip: Attaching Files in Rails

我把这些代码放在 show.html.erb 上显示图像

<%= image_tag @user.photo.url %>
<%= image_tag @user.photo.url(:thumb) %>

在新页面上，我从我的计算机浏览一个文件 (.png) 并单击创建。
然后我得到了错误

We're sorry, but something went wrong.

如何解决这个问题呢？请帮忙!

当我查看 development.log 时。我发现了这些错误:

>Status: 500 Internal Server Error
    The system cannot find the path specified
    C:/jruby/jruby-1.5.0/lib/ruby/gems/1.8/gems/rack-1.1.0/lib/rack/utils.rb:486:in
    initialize'
    C:/jruby/jruby-1.5.0/lib/ruby/gems/1.8/gems/rack-1.1.0/lib/rack/utils.rb:486:in
    new'
    C:/jruby/jruby-1.5.0/lib/ruby/gems/1.8/gems/rack-1.1.0/lib/rack/utils.rb:486:in
    parse_multipart'
    C:/jruby/jruby-1.5.0/lib/ruby/gems/1.8/gems/rack-1.1.0/lib/rack/utils.rb:471:in
    loop'
    C:/jruby/jruby-1.5.0/lib/ruby/gems/1.8/gems/rack-1.1.0/lib/rack/utils.rb:471:in
    parse_multipart'
    C:/jruby/jruby-1.5.0/lib/ruby/gems/1.8/gems/rack-1.1.0/lib/rack/request.rb:268:in
    parse_multipart'
    C:/jruby/jruby-1.5.0/lib/ruby/gems/1.8/gems/rack-1.1.0/lib/rack/request.rb:146:in
    POST'
    C:/jruby/jruby-1.5.0/lib/ruby/gems/1.8/gems/rack-1.1.0/lib/rack/methodoverride.rb:15:in
    call'
    C:/jruby/jruby-1.5.0/lib/ruby/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/params_parser.rb:15:in
    call'
    C:/jruby/jruby-1.5.0/lib/ruby/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/session/cookie_store.rb:99:in
    call'
    C:/jruby/jruby-1.5.0/lib/ruby/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/failsafe.rb:26:in
    call'
    C:/jruby/jruby-1.5.0/lib/ruby/gems/1.8/gems/rack-1.1.0/lib/rack/lock.rb:11:in
    call'
    C:/jruby/jruby-1.5.0/lib/ruby/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/dispatcher.rb:114:in
    call'
    C:/jruby/jruby-1.5.0/lib/ruby/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/reloader.rb:34:in
    run'
    C:/jruby/jruby-1.5.0/lib/ruby/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/dispatcher.rb:108:in
    call'
    C:/jruby/jruby-1.5.0/lib/ruby/gems/1.8/gems/rails-2.3.8/lib/rails/rack/static.rb:31:in
    call'
    C:/jruby/jruby-1.5.0/lib/ruby/gems/1.8/gems/rack-1.1.0/lib/rack/urlmap.rb:49:in
    call'
    C:/jruby/jruby-1.5.0/lib/ruby/gems/1.8/gems/rack-1.1.0/lib/rack/urlmap.rb:41:in
    each'
    C:/jruby/jruby-1.5.0/lib/ruby/gems/1.8/gems/rack-1.1.0/lib/rack/urlmap.rb:41:in
    call'
    C:/jruby/jruby-1.5.0/lib/ruby/gems/1.8/gems/rails-2.3.8/lib/rails/rack/log_tailer.rb:17:in
    call'
    C:/jruby/jruby-1.5.0/lib/ruby/gems/1.8/gems/rack-1.1.0/lib/rack/content_length.rb:13:in
    call'
    C:/jruby/jruby-1.5.0/lib/ruby/gems/1.8/gems/rack-1.1.0/lib/rack/chunked.rb:15:in
    call'
    C:/jruby/jruby-1.5.0/lib/ruby/gems/1.8/gems/rack-1.1.0/lib/rack/handler/mongrel.rb:67:in
    process'
    C:/jruby/jruby-1.5.0/lib/ruby/gems/1.8/gems/mongrel-1.1.5-java/lib/mongrel.rb:159:in
    process_client'
    C:/jruby/jruby-1.5.0/lib/ruby/gems/1.8/gems/mongrel-1.1.5-java/lib/mongrel.rb:158:in
    each'
    C:/jruby/jruby-1.5.0/lib/ruby/gems/1.8/gems/mongrel-1.1.5-java/lib/mongrel.rb:158:in
    process_client'
    C:/jruby/jruby-1.5.0/lib/ruby/gems/1.8/gems/mongrel-1.1.5-java/lib/mongrel.rb:285:in
    run'
    C:/jruby/jruby-1.5.0/lib/ruby/gems/1.8/gems/mongrel-1.1.5-java/lib/mongrel.rb:285:in
    initialize'
    C:/jruby/jruby-1.5.0/lib/ruby/gems/1.8/gems/mongrel-1.1.5-java/lib/mongrel.rb:285:in
    new'
    C:/jruby/jruby-1.5.0/lib/ruby/gems/1.8/gems/mongrel-1.1.5-java/lib/mongrel.rb:285:in
    run'
    C:/jruby/jruby-1.5.0/lib/ruby/gems/1.8/gems/mongrel-1.1.5-java/lib/mongrel.rb:268:in
    initialize'
    C:/jruby/jruby-1.5.0/lib/ruby/gems/1.8/gems/mongrel-1.1.5-java/lib/mongrel.rb:268:in
    new'
    C:/jruby/jruby-1.5.0/lib/ruby/gems/1.8/gems/mongrel-1.1.5-java/lib/mongrel.rb:268:in
    run'
    C:/jruby/jruby-1.5.0/lib/ruby/gems/1.8/gems/rack-1.1.0/lib/rack/handler/mongrel.rb:38:in
    run'
    C:/jruby/jruby-1.5.0/lib/ruby/gems/1.8/gems/rails-2.3.8/lib/commands/server.rb:111
    C:/jruby/jruby-1.5.0/lib/ruby/gems/1.8/gems/rails-2.3.8/lib/commands/server.rb:31:in
    require'
    C:/jruby/jruby-1.5.0/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
    require'
    ./script/server:3
    ./script/server:2:in `load'
    -e:2

Answer 1

我已经使用回形针 gem 有一段时间了，我认为它很棒 - 所以不要灰心!

我能想到的有以下几点:

(1) 你能告诉我们你的用户模型代码吗？

(2) 您是否接受 PNG 文件作为有效的图像文件？像这样的东西:
validates_attachment_content_type :avatar, :content_type => ['image/jpeg', 'image/png', 'image/gif']
祝你好运!