這個gemfile爲什麼不更新或使用bundler安裝？

Question

這是我的gemfile - 我正在研究Michael Hartl的RoR教程。當我嘗試捆綁安裝或捆綁更新時，我不斷收到「Gemfile語法錯誤：」。洞察？

source 'https://rubygems.org' 
    ruby '2.0.0' 
    #ruby-gemset=railstutorial_rails_4_0 

    gem 'rails', '4.0.4' 

    group :development, :test do 
     gem 'sqlite3', '1.3.8' 
     gem 'rspec-rails', '2.13.1' 
     gem 'guard-rspec', '2.5.0' 
     gem 'spork-rails', '4.0.0' 
     gem 'guard-spork', '1.5.0' 
     gem 'childprocess', '0.3.6' 
    end 

    group :test do 
     gem 'selenium-webdriver', '2.35.1' 
     gem 'capybara', '2.1.0' 
     gem 'growl', '2.1.0' 
    end 

    gem 'sass-rails', '4.0.1' 
    gem 'uglifier', '2.1.1' 
    gem 'coffee-rails', '4.0.1' 
    gem 'jquery-rails', '3.0.4' 
    gem 'turbolinks', '1.1.1' 
    gem 'jbuilder', '1.0.2' 

    group :doc do 
     gem 'sdoc', '0.3.20', require: false 
    end 

    group :production 
     gem 'pg', '0.15.1' 
     gem 'rails_12factor', '0.0.2' 
    end 

Answer 1

嘗試增加do到行group :production：

group :production do 
    gem 'pg', '0.15.1' 
    gem 'rails_12factor', '0.0.2' 
end