Question

请参阅下面的gem env打印件。看起来安装目录，用户安装目录和GEM路径都搞砸了。我试图为另一个项目安装ruby版本2.3.0并切换到那个项目。我卸载了ruby版本2.3.0并切换回ruby版本2.3.1。我注意到这些RubyGems环境变量搞砸了一些如何:(到处都看到'2.3.0'，我认为这是错误的。

RubyGems Environment:
  - RUBYGEMS VERSION: 2.5.1
  - RUBY VERSION: 2.3.1 (2016-04-26 patchlevel 112) [x86_64-darwin15]
  - INSTALLATION DIRECTORY: /Users/matthewsmith/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0
  - USER INSTALLATION DIRECTORY: /Users/matthewsmith/.gem/ruby/2.3.0
  - RUBY EXECUTABLE: /Users/matthewsmith/.rbenv/versions/2.3.1/bin/ruby
  - EXECUTABLE DIRECTORY: /Users/matthewsmith/.rbenv/versions/2.3.1/bin
  - SPEC CACHE DIRECTORY: /Users/matthewsmith/.gem/specs
  - SYSTEM CONFIGURATION DIRECTORY: /Users/matthewsmith/.rbenv/versions/2.3.1/etc
  - RUBYGEMS PLATFORMS:
    - ruby
    - x86_64-darwin-15
  - GEM PATHS:
     - /Users/matthewsmith/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0
     - /Users/matthewsmith/.gem/ruby/2.3.0
  - GEM CONFIGURATION:
     - :update_sources => true
     - :verbose => true
     - :backtrace => false
     - :bulk_threshold => 1000
  - REMOTE SOURCES:
     - https://rubygems.org/
  - SHELL PATH:
     - /Users/matthewsmith/.rbenv/versions/2.3.1/bin
     - /Users/matthewsmith/.rbenv/libexec
     - /Users/matthewsmith/.rbenv/plugins/ruby-build/bin
     - /Users/matthewsmith/.nvm/versions/node/v4.5.0/bin
     - /Users/matthewsmith/.rbenv/shims
     - /Users/matthewsmith/.rbenv/bin
     - /usr/local/bin
     - /usr/bin
     - /bin
     - /usr/sbin
     - /sbin

Answer 1

如果安装了多个版本，则必须将项目相关版本设置为默认版本。

要处理具有不同依赖关系的多个项目，可以使用gemset。 RVM支持gemset。替代品也可用于rbenv。

Answer 2

没有错。我可以看到您使用的是rbenv，而您的global ruby version is 2.3.1

如果你在终端上跑：

gem env home

它会返回类似的内容：

/Users/matthewsmith/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0

显然上面这行代码告诉你有全局rbenv version 2.3.1，并且在li/ruby/gems文件夹中你还安装了ruby version 2.3.0

在此文件夹中.rbenv/versions/将是您要安装的所有ruby版本，或者它们已经安装。

当我安装不同的ruby版本时，让我们说2.3.0我会这样做：

rbenv install 2.3.0  # install ruby version 2.3.0 using rbenv
rbenv local 2.3.0    # set ruby 2.3.0 to local project. It writes that version to a .ruby-version in your current directory
ruby -v              # check your version to confirm that is 2.3.0 for a local project
gem install bundler
bundle install

安装ruby版本的其他选项包括：SHELL和GLOBAL

rbenv shell 2.3.0    # Will temporarily change your Ruby version on your current shell. This sets the RBENV_VERSION environment variable in your terminal session.

rbenv global 2.3.1   # This will also change your Ruby version, but only the one you are using whenever no other version is specified, e.g. via a .ruby-version file or RBENV_VERSION variable.

注意！ 您不需要sudo来安装宝石。 通常情况下，Ruby版本将由您的安装和编写用户。安装宝石不需要额外的权限。

reference

我希望它有所帮助

RubyGems环境变量搞砸了:(

2 个答案: