Ruby和Rails回形针错误

Question

我不知道怎么了：当我在Rails服务器上午餐时，它会产生错误。

$ rails server
DL is deprecated, please use Fiddle
=> Booting Thin
=> Rails 4.2.0 application starting in development on http://localhost:3000
=> Run `rails server -h` for more startup options
=> Ctrl-C to shutdown server
Exiting
.../config/environments/development.rb
:43:in `block in <top (required)>': undefined local variable or method `paperclip' for #<...:Application:0x61ad108> (NameError)

我在gemfile中安装了gems：

gem 'thin'
gem 'protected_attributes'
gem 'paperclip' , '~> 4.2'

然后，我指定环境/development.rb：

paperclip.options[:image_magick_path] = "d:/Ruby21/ImageMagick"
#ENV['PATH'] = Paperclip.options[:command_path] + ";" + ENV['PATH'] 

Answer 1

如果尚未bundle install ，请运行bundle install安装新的gem。

Answer 2

在您的development.rb文件中，我相信paperclip.options[:image_magick_path] = "d:/Ruby21/ImageMagick"实际上应该是Paperclip.options[:image_magick_path] = "d:/Ruby21/ImageMagick" -调用'options'在类上，而不是实例上。