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我正在尝试遵循 Ruby Tutorial (Michael Hartl) 的书。我在 Gemfile:41 收到此错误（前几步是在 Gemfile:35）：

Franciscos-MacBook-Pro:first_app franciscomello$ bundle install --without production
Undefined local variable or method `rb' for Gemfile
        from /Users/franciscomello/Desktop/Aptana Studio 3 Workspace/First_app/Gemfile:41

我尝试了很多技巧。例如，我有沙盒正确的输出：

Franciscos-MacBook-Pro:first_app franciscomello$ which ruby irb gem rake
/usr/bin/ruby
/usr/bin/irb
/usr/bin/gem
/usr/bin/rake

我已经调试了我的 Gemfile，它看起来像这样：

source 'https://rubygems.org'

# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '4.0.0'

# Use sqlite3 as the database for Active Record
gem 'sqlite3', '1.3.8'


# Use SCSS for stylesheets
gem 'sass-rails', '4.0.0'

# Use Uglifier as compressor for JavaScript assets
gem 'uglifier', '2.1.1'

# Use CoffeeScript for .js.coffee assets and views
gem 'coffee-rails', '4.0.1'

# See https://github.com/sstephenson/execjs#readme for more supported runtimes
# gem 'therubyracer', platforms: :ruby

# Use jquery as the JavaScript library
gem 'jquery-rails', '3.0.4'

# Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks
gem 'turbolinks', '1.1.1'

# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
gem 'jbuilder', '1.0.2'

group :doc do
  # bundle exec rake doc:rails generates the API under doc/api.
  gem 'sdoc','0.3.20', require: false
end

group :production do
  gem 'pg', '0.15.1'
  gem 'rails_12factor', '0.0.2'
end
#sugestao do Tutorial 
gem rb-readline
4

1 回答 1

5

它应该是

gem 'rb-readline'

没有引号，它会尝试将其解释为变量...特别是 rb 减去 readline

于 2013-11-03T14:14:04.660 回答