不会运行rails命令

我正在尝试学习rails并且在过去的几周内没有使用它，但今天当我尝试运行任何rails命令时，例如 – ‘rails -v’ – ‘script / server’

我没有重新安装ruby，但是没有任何线索可能是错误的我在一个全新的Macbook Pro上

Jeremy-Geross-MacBook-Pro：~Jeremy $ rails -v

/Library/Ruby/Site/1.8/rubygems/config_file.rb:172:in `merge': can't convert String into Hash (TypeError) from /Library/Ruby/Site/1.8/rubygems/config_file.rb:172:in `initialize' from /Library/Ruby/Site/1.8/rubygems.rb:384:in `new' from /Library/Ruby/Site/1.8/rubygems.rb:384:in `configuration' from /Library/Ruby/Site/1.8/rubygems.rb:634:in `path' from /Library/Ruby/Site/1.8/rubygems/source_index.rb:68:in `installed_spec_directories' from /Library/Ruby/Site/1.8/rubygems/source_index.rb:58:in `from_installed_gems' from /Library/Ruby/Site/1.8/rubygems.rb:881:in `source_index' from /Library/Ruby/Site/1.8/rubygems/gem_path_searcher.rb:81:in `init_gemspecs' from /Library/Ruby/Site/1.8/rubygems/gem_path_searcher.rb:13:in `initialize' from /Library/Ruby/Site/1.8/rubygems.rb:839:in `new' from /Library/Ruby/Site/1.8/rubygems.rb:839:in `searcher' from /Library/Ruby/Site/1.8/rubygems.rb:838:in `synchronize' from /Library/Ruby/Site/1.8/rubygems.rb:838:in `searcher' from /Library/Ruby/Site/1.8/rubygems.rb:478:in `find_files' from /Library/Ruby/Site/1.8/rubygems.rb:1103 from /usr/bin/rails:9:in `require' from /usr/bin/rails:9 

更新：

其中ruby：/ usr / bin / ruby

ruby -v：ruby 1.8.7（2009-06-12 patchlevel 174）[i686-darwin10.3.0]

whereis gem：/ usr / bin / gem

gem-v：`

 /Library/Ruby/Site/1.8/rubygems/config_file.rb:172:in `merge': can't convert String into Hash (TypeError) from /Library/Ruby/Site/1.8/rubygems/config_file.rb:172:in `initialize' from /Library/Ruby/Site/1.8/rubygems.rb:384:in `new' from /Library/Ruby/Site/1.8/rubygems.rb:384:in `configuration' from /Library/Ruby/Site/1.8/rubygems.rb:634:in `path' from /Library/Ruby/Site/1.8/rubygems/source_index.rb:68:in `installed_spec_directories' from /Library/Ruby/Site/1.8/rubygems/source_index.rb:58:in `from_installed_gems' from /Library/Ruby/Site/1.8/rubygems.rb:881:in `source_index' from /Library/Ruby/Site/1.8/rubygems/gem_path_searcher.rb:81:in `init_gemspecs' from /Library/Ruby/Site/1.8/rubygems/gem_path_searcher.rb:13:in `initialize' from /Library/Ruby/Site/1.8/rubygems.rb:839:in `new' from /Library/Ruby/Site/1.8/rubygems.rb:839:in `searcher' from /Library/Ruby/Site/1.8/rubygems.rb:838:in `synchronize' from /Library/Ruby/Site/1.8/rubygems.rb:838:in `searcher' from /Library/Ruby/Site/1.8/rubygems.rb:478:in `find_files' from /Library/Ruby/Site/1.8/rubygems.rb:1103 from /usr/bin/gem:8:in `require' from /usr/bin/gem:8 

gem list :

 /Library/Ruby/Site/1.8/rubygems/config_file.rb:172:in `merge': can't convert String into Hash (TypeError) from /Library/Ruby/Site/1.8/rubygems/config_file.rb:172:in `initialize' from /Library/Ruby/Site/1.8/rubygems.rb:384:in `new' from /Library/Ruby/Site/1.8/rubygems.rb:384:in `configuration' from /Library/Ruby/Site/1.8/rubygems.rb:634:in `path' from /Library/Ruby/Site/1.8/rubygems/source_index.rb:68:in `installed_spec_directories' from /Library/Ruby/Site/1.8/rubygems/source_index.rb:58:in `from_installed_gems' from /Library/Ruby/Site/1.8/rubygems.rb:881:in `source_index' from /Library/Ruby/Site/1.8/rubygems/gem_path_searcher.rb:81:in `init_gemspecs' from /Library/Ruby/Site/1.8/rubygems/gem_path_searcher.rb:13:in `initialize' from /Library/Ruby/Site/1.8/rubygems.rb:839:in `new' from /Library/Ruby/Site/1.8/rubygems.rb:839:in `searcher' from /Library/Ruby/Site/1.8/rubygems.rb:838:in `synchronize' from /Library/Ruby/Site/1.8/rubygems.rb:838:in `searcher' from /Library/Ruby/Site/1.8/rubygems.rb:478:in `find_files' from /Library/Ruby/Site/1.8/rubygems.rb:1103 from /usr/bin/gem:8:in `require' from /usr/bin/gem:8 

`

whereis rails：/ usr / bin / rails

Answer 1

看起来你的gemrc文件可能会被破坏。 您可以删除该文件（或更好地将其移走）并查看内容。 它应该是key: valueformskey: value每行key: value或key:后跟一些缩进行。