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我正在尝试在 Sinatra 应用程序中开始使用 Mongoid，但看起来我遇到了依赖问题。如果有帮助，我在 Macbook Pro 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>'

任何人都可以帮忙吗？

以下是涉及的文件：

mongoid.yml：

development:
  sessions:
    default:
      database: mongoid
      hosts:
        - localhost:27017

配置.ru：

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

宝石文件：

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.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>'
4

1 回答 1

3

你有一个Gemfile，但你没有使用 Bundler 启动你的应用程序，这就是你有冲突的原因。

当前版本shopify_api(3.0.3) 依赖于activemodelvia activeresource，版本要求设置为>=3.0.0. 在您的系统上安装了 Rails 4，因此activemodel加载了 4.0。

当前版本对mongoid也有依赖activemodel，但这次的版本要求是~> 3.2.

这两个版本要求不兼容，因此您收到错误消息activemodel-4.0.0 conflicts with activemodel (~> 3.1)。

要修复它，只需使用 Bundler 启动您的应用程序。你说你正在运行，$ ruby config.ru但这不是使用 a 的正确方法config.ru（即使你修复了依赖问题，以后也会出错）。你应该使用rackup. 在这种情况下，您应该运行：

$ bundle exec rackup
于 2013-08-15T23:26:48.303 回答