ruby-on-rails - 启动 Rails 服务器时出现奇怪的 "no such file to load -- redis-namespace"异常

Question

我正在使用 Rails 2.3.8 + redis + resque + redis-namespace

这是我的environment.rb

的一部分

  config.gem 'jrails'
  config.gem 'haml'
  config.gem 'redis'
  config.gem 'redis-namespace'
  config.gem 'resque

这是我的 gem list

redis (2.0.3)
redis-namespace (0.7.0)
resque (1.9.7)

当我通过“脚本/服务器”启动我的服务器时，它显示这样的异常:

=> Rails 2.3.8 application starting on http://0.0.0.0:3000
no such file to load -- redis-namespace
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.8/lib/active_support/dependencies.rb:156:in `require'
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.8/lib/active_support/dependencies.rb:521:in `new_constants_in'
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.8/lib/active_support/dependencies.rb:156:in `require'
/usr/local/lib/ruby/gems/1.8/gems/rails-2.3.8/lib/rails/gem_dependency.rb:215:in `load'
/usr/local/lib/ruby/gems/1.8/gems/rails-2.3.8/lib/initializer.rb:307:in `load_gems'
/usr/local/lib/ruby/gems/1.8/gems/rails-2.3.8/lib/initializer.rb:307:in `each'
/usr/local/lib/ruby/gems/1.8/gems/rails-2.3.8/lib/initializer.rb:307:in `load_gems'
/usr/local/lib/ruby/gems/1.8/gems/rails-2.3.8/lib/initializer.rb:164:in `process'
/usr/local/lib/ruby/gems/1.8/gems/rails-2.3.8/lib/initializer.rb:113:in `send'
/usr/local/lib/ruby/gems/1.8/gems/rails-2.3.8/lib/initializer.rb:113:in `run'
/mnt/workspace/webtails/config/environment.rb:9

我重装了很多次redis-namespace，总是显示这个错误信息。哪里错了？

Answer 1

因为这个文件不存在。你需要 require 'redis/namespace'

config.gem 'redis-namespace', :lib => 'redis/namespace'