title: Rails 3: Bundle Exec
body: <p>I get the following when trying to start with Mongrel:</p>
  
  <blockquote>
    <p>You have already activated daemons 1.1.0, but your Gemfile requires
    daemons 1.0.10. Consider using bundle exec. (Gem::LoadError)</p>
  </blockquote>
  
  <p>Thanks!</p>
  
  <p>Edit:</p>
  
  <p>My Gemfile:</p>
  
  <pre><code>source 'http://rubygems.org'
  
  gem 'rake', '0.8.7'
  gem 'rails', '3.0.0'
  gem 'mysql2', '0.2.7'
  gem 'tabs_on_rails'
  gem 'tabulous'
  gem 'devise'
  gem 'cancan'
  gem 'kaminari'
  gem 'formtastic', '~&gt; 1.2.0'
  gem 'jquery-rails'
  gem 'client_side_validations'
  gem 'paperclip'
  gem 'paper_trail'
  gem 'acts-as-taggable-on'
  gem 'acts_as_tree'
  gem 'acts_as_list'
  gem 'hpricot'
  gem 'rails3-jquery-autocomplete'
  gem 'meta_where'
  gem 'meta_search'
  gem 'aws-s3'
  gem 'flash_cookie_session'
  gem 'mime-types', :require =&gt; 'mime/types'
  gem 'vanities'
  gem 'geokit'
  gem 'geokit-rails'
  gem 'tiny_mce'
  gem 'RedCloth'
  gem 'omniauth'
  gem 'twitter'
  gem 'fb_graph'
  gem 'linkedin'
  gem 'whenever'
  gem 'resque'
  
  group :development, :test do
    gem 'faker'
    gem 'mocha'
    gem 'rails-erd'
    gem 'rspec'
    gem 'rspec-rails'
    gem 'webrat'
    gem 'pickle'
  end
  </code></pre>