Ruby Can'；不要用Sinatra启动Mongoid

我试图在Sinatra应用程序中开始使用Mongoid，但看起来我遇到了依赖性问题。如果有帮助的话，我在MacBookPro上使用RVM并运行Ruby 1.9.3

以下是我在运行$ruby config.ru后遇到的错误：

/Users/duncanmalashock/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/rubygems/specification.rb:1637:in `raise_if_conflicts': Unable to activate mongoid-3.0.23, because activemodel-4.0.0 conflicts with activemodel (~> 3.1) (Gem::LoadError)
from /Users/duncanmalashock/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/rubygems/specification.rb:746:in `activate'
from /Users/duncanmalashock/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/rubygems.rb:212:in `rescue in try_activate'
from /Users/duncanmalashock/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/rubygems.rb:209:in `try_activate'
from /Users/duncanmalashock/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/rubygems/custom_require.rb:59:in `rescue in require'
from /Users/duncanmalashock/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/rubygems/custom_require.rb:35:in `require'
from /Users/duncanmalashock/Penumbra/penumbra.rb:4:in `<top (required)>'
from /Users/duncanmalashock/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
from /Users/duncanmalashock/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
from config.ru:2:in `<main>'

require 'sinatra'
require './penumbra'
run Sinatra::Application

config.ru：

/Users/duncanmalashock/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/rubygems/specification.rb:1637:in `raise_if_conflicts': Unable to activate mongoid-3.0.23, because activemodel-4.0.0 conflicts with activemodel (~> 3.1) (Gem::LoadError)
from /Users/duncanmalashock/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/rubygems/specification.rb:746:in `activate'
from /Users/duncanmalashock/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/rubygems.rb:212:in `rescue in try_activate'
from /Users/duncanmalashock/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/rubygems.rb:209:in `try_activate'
from /Users/duncanmalashock/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/rubygems/custom_require.rb:59:in `rescue in require'
from /Users/duncanmalashock/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/rubygems/custom_require.rb:35:in `require'
from /Users/duncanmalashock/Penumbra/penumbra.rb:4:in `<top (required)>'
from /Users/duncanmalashock/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
from /Users/duncanmalashock/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
from config.ru:2:in `<main>'

require 'sinatra'
require './penumbra'
run Sinatra::Application

档案：

source :rubygems
source :rubyforge

# Thin Server
gem 'thin'

# Sinatra
gem 'sinatra'
gem 'sinatra-contrib', :require => 'sinatra/multi_route'
gem 'sinatra-partial', :require => 'sinatra/partial'
gem 'sinatra-reloader'

# MongoDB
gem "mongoid"

# Shopify
gem 'shopify_api'

半影图.rb：

require 'sinatra'
require 'shopify_api'
require 'mongo'
require 'mongoid'

require 'json'
require "sinatra/reloader" if development?

Mongoid.load!("./mongoid.yml", :production)

def isactivepage(link_name)
    if (link_name == @page_name)
        return ' activelink'
    else return ''
    end
end

get '/' do
    @page_name = "Home"
    erb :"pages/index"
end

get '/about' do
    @page_name = "About"
    erb :"pages/about"
end

运行$bundle exec rackup后：

/Users/duncanmalashock/.rvm/gems/ruby-1.9.3-p448/gems/mongoid-1.0.6/lib/mongoid.rb:68:in `method_missing': undefined method `load!' for #<Mongoid::Config:0x007fc0838cb1d0> (NoMethodError)
from /Users/duncanmalashock/Penumbra/penumbra.rb:9:in `<top (required)>'
from /Users/duncanmalashock/Penumbra/config.ru:2:in `require'
from /Users/duncanmalashock/Penumbra/config.ru:2:in `block in <main>'
from /Users/duncanmalashock/.rvm/gems/ruby-1.9.3-p448/gems/rack-1.5.2/lib/rack/builder.rb:55:in `instance_eval'
from /Users/duncanmalashock/.rvm/gems/ruby-1.9.3-p448/gems/rack-1.5.2/lib/rack/builder.rb:55:in `initialize'
from /Users/duncanmalashock/Penumbra/config.ru:in `new'
from /Users/duncanmalashock/Penumbra/config.ru:in `<main>'
from /Users/duncanmalashock/.rvm/gems/ruby-1.9.3-p448/gems/rack-1.5.2/lib/rack/builder.rb:49:in `eval'
from /Users/duncanmalashock/.rvm/gems/ruby-1.9.3-p448/gems/rack-1.5.2/lib/rack/builder.rb:49:in `new_from_string'
from /Users/duncanmalashock/.rvm/gems/ruby-1.9.3-p448/gems/rack-1.5.2/lib/rack/builder.rb:40:in `parse_file'
from /Users/duncanmalashock/.rvm/gems/ruby-1.9.3-p448/gems/rack-1.5.2/lib/rack/server.rb:277:in `build_app_and_options_from_config'
from /Users/duncanmalashock/.rvm/gems/ruby-1.9.3-p448/gems/rack-1.5.2/lib/rack/server.rb:199:in `app'
from /Users/duncanmalashock/.rvm/gems/ruby-1.9.3-p448/gems/rack-1.5.2/lib/rack/server.rb:314:in `wrapped_app'
from /Users/duncanmalashock/.rvm/gems/ruby-1.9.3-p448/gems/rack-1.5.2/lib/rack/server.rb:250:in `start'
from /Users/duncanmalashock/.rvm/gems/ruby-1.9.3-p448/gems/rack-1.5.2/lib/rack/server.rb:141:in `start'
from /Users/duncanmalashock/.rvm/gems/ruby-1.9.3-p448/gems/rack-1.5.2/bin/rackup:4:in `<top (required)>'
from /Users/duncanmalashock/.rvm/gems/ruby-1.9.3-p448/bin/rackup:23:in `load'
from /Users/duncanmalashock/.rvm/gems/ruby-1.9.3-p448/bin/rackup:23:in `<main>'

/Users/duncanmalaschock/.rvm/gems/ruby-1.9.3-p448/gems/mongoid-1.0.6/lib/mongoid.rb:68:in'method_missing'：未定义的方法'load！'对于#（命名者）
from/Users/duncanmalaschock/Penumbra/Penumbra.rb:9:in`'
from/Users/duncanmalaschock/Penumbra/config.ru:2:in'require'
from/Users/duncanmalaschock/Penumbra/config.ru:2:in'block in'
from/Users/duncanmalaschock/.rvm/gems/ruby-1.9.3-p448/gems/rack-1.5.2/lib/rack/builder.rb:55:in'instance_eval'
from/Users/duncanmalaschock/.rvm/gems/ruby-1.9.3-p448/gems/rack-1.5.2/lib/rack/builder.rb:55:在“初始化”中
from/Users/duncanmalaschock/Penumbra/config.ru:in'new'
from/Users/duncanmalaschock/Penumbra/config.ru:in`'
from/Users/duncanmalaschock/.rvm/gems/ruby-1.9.3-p448/gems/rack-1.5.2/lib/rack/builder.rb:49:in'eval'
from/Users/duncanmalaschock/.rvm/gems/ruby-1.9.3-p448/gems/rack-1.5.2/lib/rack/builder.rb:49:in'new_from_string'
from/Users/duncanmalaschock/.rvm/gems/ruby-1.9.3-p448/gems/rack-1.5.2/lib/rack/builder.rb:40:in“parse_file”
from/Users/duncanmalaschock/.rvm/gems/ruby-1.9.3-p448/gems/rack-1.5.2/lib/rack/server.rb:277:in“build\u app\u和\u options\u from\u config”
from/Users/duncanmalaschock/.rvm/gems/ruby-1.9.3-p448/gems/rack-1.5.2/lib/rack/server.rb:199:in'app'
from/Users/duncanmalaschock/.rvm/gems/ruby-1.9.3-p448/gems/rack-1.5.2/lib/rack/server.rb:314:in'wrapped_app'
from/Users/duncanmalaschock/.rvm/gems/ruby-1.9.3-p448/gems/rack-1.5.2/lib/rack/server.rb:250:在“开始”中
from/Users/duncanmalaschock/.rvm/gems/ruby-1.9.3-p448/gems/rack-1.5.2/lib/rack/server.rb:141:在“开始”中
from/Users/duncanmalaschock/.rvm/gems/ruby-1.9.3-p448/gems/rack-1.5.2/bin/rackup:4:in`'
from/Users/duncanmalaschock/.rvm/gems/ruby-1.9.3-p448/bin/rackup:23:in'load'
from/Users/duncanamalaschock/.rvm/gems/ruby-1.9.3-p448/bin/rackup:23:in`'

您有一个

Gemfile

，但您没有使用Bundler启动应用程序，这就是为什么会发生冲突

当前版本的

shopify_api

（3.0.3）依赖于

activemodel

，通过

activeresource

使用。在您的系统上安装了Rails 4，因此加载了

activemodel

4.0

当前版本的

mongoid

也依赖于

activemodel

，但这次是

这两个版本要求不兼容，因此会出现错误

activemodel-4.0.0与activemodel（~>3.1）

要修复它，只需使用Bundler启动您的应用程序。您说您正在使用

$ruby config.ru

运行，但这不是使用

config.ru

的正确方法（即使您解决了依赖性问题，以后也会出现错误）。您应该使用

rackup

。在这种情况下，您应该运行：

$ bundle exec rackup

---

谢谢Matt，但是运行$bundle exec rackup并没有解决问题。我将终端输出添加到原始问题的末尾。@DuncanMalashock这是另一个问题。您似乎正在运行一个相当旧的mongoid版本（1.0.6），它没有

加载方法。您需要更新到更新的版本（
$bundle update mongoid
，或者在您的
Gemfile
中指定一个版本，然后重新运行
bundle安装
），或者查找您正在使用的mongoid版本的文档并更新您的代码。谢谢，在Gemfile中的mongoid行添加了“~>3.0.0”并运行了bundler更新，问题解决了。