NameError(未初始化的常量 Paperclip::Storage::S3::AWS): [英] NameError (uninitialized constant Paperclip::Storage::S3::AWS):

问题描述

我正在尝试将图像合并到我的网络应用程序中，但在删除了相当多的功能后，我一直遇到此错误.它归结为我的创建"应用程序控制器，我不完全确定我应该从哪里开始.

I'm trying to incorporate images into my web app and I keep running into this error after removing quite a few features. It came down to my 'create' application controller and I'm not entirely sure where I should go from here.

2015-02-06T20:30:12.292187+00:00 app[web.1]:    (1.9ms)  ROLLBACK
2015-02-06T20:30:12.296299+00:00 app[web.1]: NameError (uninitialized constant Paperclip::Storage::S3::AWS):
2015-02-06T20:30:12.296301+00:00 app[web.1]:   app/controllers/articles_controller.rb:24:in `create'
2015-02-06T20:45:14.691084+00:00 app[web.1]: [paperclip] saving /articles/images/000/000/013/original/git.jpeg
2015-02-06T20:45:14.698744+00:00 app[web.1]: Completed 500 Internal Server Error in 584ms
2015-02-06T20:45:14.700871+00:00 heroku[router]: at=info method=POST path="/articles" host=preston.herokuapp.com request_id=d9d02257-3616-4686-bce5-3d912cd528c2 fwd="76.22.102.38" dyno=web.1 connect=1ms service=698ms status=500 bytes=1754

Articles_controller.rb

Articles_controller.rb

class ArticlesController < ApplicationController
http_basic_authenticate_with name: "name", password: "password", except: [:index, :show]

    def index
        @articles = Article.all.order("created_at DESC")
    end

    def show
        @article = Article.find(params[:id])
    end

    def new
        @article = Article.new
    end 

    def edit
        @article = Article.find(params[:id])

    end

    def create
        @article = Article.new(article_params)

        if @article.save
          redirect_to @article
        else
            render 'new'
        end  
    end

    def update
        @article = Article.find(params[:id])

        if @article.update(article_params)
            redirect_to @article
        else
            render 'edit'
        end
    end

    def destroy
        @article = Article.find(params[:id])
        @article.destroy

        redirect_to articles_path
    end

    private

    def article_params
        params.require(:article).permit(:title, :text, :image)
    end
end

宝石文件

source 'https://rubygems.org'
ruby '2.0.0'

gem 'rails', '4.2.0'
gem 'sass-rails', '~> 5.0'
gem 'uglifier', '>= 1.3.0'
gem 'coffee-rails', '~> 4.1.0'
gem 'jquery-rails'
gem 'turbolinks'
gem 'jbuilder', '~> 2.0'
gem 'bootstrap-sass', '~> 3.3.3' 
gem 'autoprefixer-rails'
gem 'paperclip', '~> 4.2.1'
gem 'aws-sdk', '~> 2.0.22'

group :development, :test do
 gem 'byebug'
 gem 'web-console', '~> 2.0'
 gem 'spring'
 gem 'sqlite3'
end

group :production do
    gem 'pg'
    gem 'rails_12factor'
end

group :doc do
    gem 'sdoc', '~> 0.4.0', require: false
end

推荐答案

修改 Gemfile 的 aws-sdk 以安装 2.0 之前的版本:

Modify your Gemfile's aws-sdk to install a version prior to 2.0:

gem 'aws-sdk', '< 2.0'

这个问题是在新版 aws-sdk (2.0+) 中引入的.您可以在此处阅读更多信息:http://ruby.awsblog.com/post/TxFKSK2QJE6RPZ/Upcoming-Stable-Release-of-AWS-SDK-for-Ruby-Version-2

This issue was introduced with new version of aws-sdk (2.0+). You can read more here: http://ruby.awsblog.com/post/TxFKSK2QJE6RPZ/Upcoming-Stable-Release-of-AWS-SDK-for-Ruby-Version-2

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