我正在开始一个 Rails 教程,它告诉我在创建新的演示应用程序时编辑 gemfile:
source 'https://rubygems.org'
gem 'rails', '3.2.3'
# Bundle edge Rails instead:
# gem 'rails', :git => 'git://github.com/rails/rails.git'
gem :development do
gem 'sqlite3', '1.3.5'
end
# Gems used only for assets and not required
# in production environments by default.
group :assets do
gem 'sass-rails', '3.2.4'
gem 'coffee-rails', '3.2.2'
# See https://github.com/sstephenson/execjs#readme for more supported runtimes
# gem 'therubyracer', :platform => :ruby
gem 'uglifier', '1.2.3'
end
gem 'jquery-rails', '2.0.0'
group :production do
gem 'pg', '0.12.2'
end
# To use ActiveModel has_secure_password
# gem 'bcrypt-ruby', '~> 3.0.0'
# To use Jbuilder templates for JSON
# gem 'jbuilder'
# Use unicorn as the app server
# gem 'unicorn'
# Deploy with Capistrano
# gem 'capistrano'
# To use debugger
# gem 'ruby-debug19', :require => 'ruby-debug'
当我按照说明使用 bundle install --without production
尝试 bundle install
文件时,我收到此错误:
You need to specify gem names as Strings. Use 'gem "development"' instead.
当我返回文件并将 gem :development
更改为 gem "development"
时,我被告知:
Could not find gem 'development (>= 0) ruby' in the gems available on this machine.
我是新手,当一组清晰的说明似乎与另一组冲突且均无效时,我真的不知道该怎么办,尤其是因为我并不真正理解这些术语中的任何一个的含义。
非常感谢您的帮助,
最佳答案
:development
应该是一个组,而不是一个 gem。试试这个:
group :development do
gem 'sqlite3', '1.3.5'
end
这意味着开发组中的所有 gem 都应该加载到开发环境中。在这种情况下,在生产或测试中运行时,您将没有 sqlite gem。
生产组也是一样。
Assets 组仅在为 Asset Pipeline 编译 Assets 时加载.
关于ruby-on-rails - Rails gem 文件编辑,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/10762590/