无法激活Rake（> 0.0.0）？

Question

好的，这很奇怪。我试图做一个数据库迁移，突然间，我得到这些错误：

 
[C:\source\fe]: rake db:migrate --trace 
(in C:/source/fe) 
** Invoke db:migrate (first_time) 
** Invoke setup (first_time) 
** Invoke gems:install (first_time) 
** Invoke gems:set_gem_status (first_time) 
** Execute gems:set_gem_status 
** Execute gems:install 
rake aborted! 
can`'t activate rake (> 0.0.0), already activated rake-0.8.3] 
c:/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:139:in `activate' 
c:/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:155:in `activate' 
c:/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:154:in `each' 
c:/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:154:in `activate' 
c:/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:49:in `gem' 
C:/source/fe/config/../vendor/rails/railties/lib/rails/gem_dependency.rb:36:in `add_load_paths' 
C:/source/fe/config/../vendor/rails/railties/lib/initializer.rb:245:in `add_gem_load_paths' 
C:/source/fe/config/../vendor/rails/railties/lib/initializer.rb:245:in `each' 
C:/source/fe/config/../vendor/rails/railties/lib/initializer.rb:245:in `add_gem_load_paths' 
C:/source/fe/config/../vendor/rails/railties/lib/initializer.rb:97:in `send' 
C:/source/fe/config/../vendor/rails/railties/lib/initializer.rb:97:in `run' 
C:/source/fe/config/gems.rb:45:in `init_dependencies' 
C:/source/fe/lib/tasks/overridegems.rake:15 
c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:617:in `call' 
c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:617:in `execute' 
c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:612:in `each' 
c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:612:in `execute' 
c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:578:in `invoke_with_call_chain' 
c:/ruby/lib/ruby/1.8/monitor.rb:242:in `synchronize' 
c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:571:in `invoke_with_call_chain' 
c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:588:in `invoke_prerequisites' 
c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:585:in `each' 
c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:585:in `invoke_prerequisites' 
c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:577:in `invoke_with_call_chain' 
c:/ruby/lib/ruby/1.8/monitor.rb:242:in `synchronize' 
c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:571:in `invoke_with_call_chain' 
c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:588:in `invoke_prerequisites' 
c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:585:in `each' 
c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:585:in `invoke_prerequisites' 
c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:577:in `invoke_with_call_chain' 
c:/ruby/lib/ruby/1.8/monitor.rb:242:in `synchronize' 
c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:571:in `invoke_with_call_chain' 
c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:564:in `invoke' 
c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:2019:in `invoke_task' 
c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1997:in `top_level' 
c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1997:in `each' 
c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1997:in `top_level' 
c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:2036:in `standard_exception_handling' 
c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1991:in `top_level' 
c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1970:in `run' 
c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:2036:in `standard_exception_handling' 
c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1967:in `run' 
c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/bin/rake:31 
c:/ruby/bin/rake:19:in `load' 
c:/ruby/bin/rake:19 
[C:\source\fe]: 

有什么建议吗？我试过卸载并重新安装耙，以及更新导轨。

仅供参考，我正在使用Gem 1.1.1。

我也试过宝石更新导轨，宝石更新耙和其他任何东西。

Answer 1

有趣的是，这里的解决方案是我需要降级我的耙子版本。本地版本（在我的C：\ ruby​​目录中）覆盖源目录中的一个，无法加载。我做了宝石更新并更新了我所有的本地宝石。

的命令是：

gem uninstall rake 
gem install rake -v ('= 1.5.1') 

Answer 2

rake aborted! 
can`'t activate rake 

这是中秋 - 也许太多的树叶掉下来了，耙子不能使用。尝试使用吹叶机。

下一次，跟上倾斜，以防止这种情况。

Answer 3

我有一个类似于这个的问题，我最终通过黑客入侵我的rails版本来不初始化活动资源（通过修改/rails/railties/builtin/rails_info/rails/info.rb中的组件方法）

这显然是一个黑客攻击，但我没有机会解决为什么active_resource会特别引起rake冲突，而且因为我没有使用active_resource，它让我度过了一夜。