耙子流产了！使用Octopress时OSX上未初始化的常量Gem :: UserInteraction

我使用Octopress写博客，今天当我通常使用commmand rake生成时出现错误弹出，我用Google搜索并说它可能是宝石版本问题，所以我试图更新但仍然有错误 . 所以任何人都可以给我一个建议？提前致谢 .

这是终端命令：

stevenlordiam：octopress stevenlordiam $ rake generate

耙子流产了！未初始化的常量Gem :: UserInteraction

（通过使用--trace运行任务查看完整跟踪）

stevenlordiam：octopress stevenlordiam $ sudo gem update --system

密码：

/Library/Ruby/Site/1.8/rubygems/config_file.rb:39：来自/Library/Ruby/Site/1.8/rubygems/core_ext/kernel_require.rb:55:in gem_original_require' from /Library/Ruby/Site/1.8/rubygems/core_ext/kernel_require.rb:55:in require'的未初始化常量Gem :: UserInteraction（NameError）来自/ Library / Ruby / Site1.8 /rubygems / specification.rb：1430：in build_extensions' from /Library/Ruby/Site/1.8/rubygems/stub_specification.rb:60:in build_extensions'from /Library/Ruby/Site/1.8/rubygems/basic_specification.rb:56:in contains_requirable_file?' from /Library/Ruby/Site/1.8/rubygems/specification.rb:925:in find_inactive_by_path'from / Library / Ruby / Site / 1.8 / rubygems / specification.rb:1031:in find' from /Library/Ruby/Site/1.8/rubygems/specification.rb:924:in each'from /Library/Ruby/Site/1.8/rubygems/specification.rb:924:in find' from /Library/Ruby/Site/1.8/rubygems/specification.rb:924:in find_inactive_by_path'from /Library/Ruby/Site/1.8/rubygems . rb：185：在 try_activate' from /Library/Ruby/Site/1.8/rubygems/core_ext/kernel_require.rb:132:in 中需要来自/Library/Ruby/Site/1.8/rubygems/user_interaction.rb:8来自/Library/Ruby/Site/1.8/rubygems/core_ext/kernel_require.rb:55:in gem_original_require' from /Library/Ruby/Site/1.8/rubygems/core_ext/kernel_require.rb:55:in require'from /Library/Ruby/Site/1.8/rubygems/command.rb:9来自/Library/Ruby/Site/1.8/rubygems/core_ext/kernel_require.rb:55:in gem_original_require' from /Library/Ruby/Site/1.8/rubygems/core_ext/kernel_require.rb:55:in require'from /Library/Ruby/Site/1.8/ rubygems / command_manager.rb：来自/ Library / Ruby / Site / 7 1.8 / rubygems / core_ext / kernel_require.rb：55：in gem_original_require' from /Library/Ruby/Site/1.8/rubygems/core_ext/kernel_require.rb:55:in require'from /Library/Ruby/Site/1.8/rubygems/gem_runner.rb:8 from /Library/Ruby/Site/1.8/rubygems/core_ext/kernel_require.rb ：55：in gem_original_require' from /Library/Ruby/Site/1.8/rubygems/core_ext/kernel_require.rb:55:in require'from / usr / bin / gem：9