http://railsapps.github.io/installrubyonrails-mac.html

我在Rails示例应用程序部分,但是当我运行时

bundle install --without production

我收到此错误：

[!] There was an error parsing `Gemfile`: no .<digit> floating literal anymore; put 0 before dot - ruby ‘2.3.0’
              ^
    /Users/eric.park/workspace/learn-rails/Gemfile:2: Syntax error,unexpected tFLOAT,expecting '('
    ruby ‘2.3.0’
                 ^. Bundler cannot continue.

     #  from /Users/eric.park/workspace/learn-rails/Gemfile:2
     #  -------------------------------------------
     #  source 'https://rubygems.org'
     >  ruby ‘2.3.0’
     #  gem 'rails','4.2.5'
     #  -------------------------------------------

我是rails的新手,所以如果有人能够解释这个错误通常意味着什么,以及如果它再次出现那么我将如何解决这个问题会非常有帮助.