rails中的Active_Model错误 [英] Active_Model error in rails

问题描述

我回到了我正在开发的一个rails项目上，命令rails s开始失败。终端推荐我运行捆绑安装。当我收到以下消息时：

  Bundler无法找到适用于gemactivemodel的兼容版本：
 In Gemfile：
 protected_attributes（> = 0）ruby依赖于
 activemodel（< 5.0，> = 4.0.0.beta）ruby 
 
 rails（> = 0 ）ruby取决于
 activemodel（3.2.12）
  

我更新了ruby和rails 。我重新安装了活动模型并重新启动了终端。

我的宝石文件非常简单：

  gem'rails'
 gem'jquery-rails'
 gem'devise'
 gem'simple_form'
 gem'protected_attributes'
 
组：生产do 
 gem'pg'
结束
 
组：开发，：测试
 gem'sqlite3'
结束
 
组：资产do 
 gem'sass-rails'，'〜> 3.2.3'
 gem'咖啡栏'，'〜> 3.2.1'
 gem'bootstrap-sass'，'〜> 2.2.2.0'
 gem'bootstrap'
 end 
  

解决方案

删除你的Gemfile.lock并运行

$ ul $ $ b $ li $ rm Gemfile.lock

和

捆绑安装

I went back to a rails project I was working on and the command "rails s" started to fail. The Terminal recommended that I run a bundle install. When I did I received the following message:

    Bundler could not find compatible versions for gem "activemodel":
    In Gemfile:
    protected_attributes (>= 0) ruby depends on
    activemodel (< 5.0, >= 4.0.0.beta) ruby

    rails (>= 0) ruby depends on
    activemodel (3.2.12) 

I have updated both ruby and rails. I've re-installed active model and restarted my terminal.

My gems file is very simple:

 gem 'rails'
 gem 'jquery-rails'
 gem 'devise'
 gem 'simple_form'
 gem 'protected_attributes'

group :production do
gem 'pg' 
  end

 group :development, :test do 
gem 'sqlite3'
  end

  group :assets do
  gem 'sass-rails',   '~> 3.2.3'
   gem 'coffee-rails', '~> 3.2.1'
   gem 'bootstrap-sass', '~> 2.2.2.0'
   gem 'bootstrap'
   end

解决方案

Remove your Gemfile.lock and run

• rm Gemfile.lock

  and

• bundle install

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