无法成功升级Ruby - Gem仍在使用旧的ruby版本

Question

我在我的macbook上将Ruby正确升级到2.3.0时遇到了一点麻烦。我按照这里的说明操作：https://gorails.com/setup/osx/10.11-el-capitan

然而，我仍然不能安装chef-zero (这是我不得不升级的原因)，并且我的Gem "classpath“似乎仍然指向旧的Ruby版本：

amencke@offplantever-lm ~/d/chef-repo> rbenv local
2.3.0
amencke@offplantever-lm ~/d/chef-repo> rbenv global
2.3.0
amencke@offplantever-lm ~/d/chef-repo> ruby -v
ruby 2.3.0p0 (2015-12-25 revision 53290) [x86_64-darwin14]

到目前为止看起来还可以。

amencke@offplantever-lm ~/d/chef-repo> gem environment
RubyGems Environment:
  - RUBYGEMS VERSION: 2.3.0
  - RUBY VERSION: 2.0.0 (2014-05-08 patchlevel 481) [universal.x86_64-darwin14]
  - INSTALLATION DIRECTORY: /Library/Ruby/Gems/2.0.0
  - RUBY EXECUTABLE: /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby
  - EXECUTABLE DIRECTORY: /usr/bin
  - SPEC CACHE DIRECTORY: /Users/amencke/.gem/specs
  - SYSTEM CONFIGURATION DIRECTORY: /Library/Ruby/Site
  - RUBYGEMS PLATFORMS:
    - ruby
    - universal-darwin-14
  - GEM PATHS:
     - /Library/Ruby/Gems/2.0.0
     - /Users/amencke/.gem/ruby/2.0.0
     - /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/gems/2.0.0
  - GEM CONFIGURATION:
     - :update_sources => true
     - :verbose => true
     - :backtrace => false
     - :bulk_threshold => 1000
  - REMOTE SOURCES:
     - https://rubygems.org/
  - SHELL PATH:
     - /usr/local/bin
     - /usr/bin
     - /bin
     - /usr/sbin
     - /sbin
amencke@offplantever-lm ~/d/chef-repo> 

如果我尝试安装chef-zero：

amencke@offplantever-lm ~/d/chef-repo> sudo gem install chef-zero 
Password:
ERROR:  Error installing chef-zero:
    chef-zero requires Ruby version >= 2.1.0.
amencke@offplantever-lm ~/d/chef-repo> 

有什么想法吗？我对Ruby一点经验都没有(或者在OSX上创建开发环境)--如果方向正确，我将不胜感激！

Answer 1

这里的答案是我用的是鱼壳。我来自一个linux后援组，正在匆忙更新环境设置的是~/.bash_profile。这些设置在这里进行了解释：rbenv not changing ruby version。因为我不太喜欢鱼，所以简单地用chsh -s /bin/bash和嘿presto改回bash是没有问题的：

offplantever-lm:~ amencke$ gem env
RubyGems Environment:
  - RUBYGEMS VERSION: 2.5.1
  - RUBY VERSION: 2.3.0 (2015-12-25 patchlevel 0) [x86_64-darwin14]
  - INSTALLATION DIRECTORY: /Users/amencke/.rvm/gems/ruby-2.3.0
  - USER INSTALLATION DIRECTORY: /Users/amencke/.gem/ruby/2.3.0
  - RUBY EXECUTABLE: /Users/amencke/.rbenv/versions/2.3.0/bin/ruby
  - EXECUTABLE DIRECTORY: /Users/amencke/.rvm/gems/ruby-2.3.0/bin
  - SPEC CACHE DIRECTORY: /Users/amencke/.gem/specs
  - SYSTEM CONFIGURATION DIRECTORY: /Users/amencke/.rbenv/versions/2.3.0/etc
  - RUBYGEMS PLATFORMS:
    - ruby
    - x86_64-darwin-14
  - GEM PATHS:
     - /Users/amencke/.rvm/gems/ruby-2.3.0
     - /Users/amencke/.rvm/gems/ruby-2.3.0@global
     - ... 

干杯，亚瑟