嘗試安裝gem，/Library/Ruby/Gems/2.0.0目錄時沒有寫入權限。 RVM已安裝

Question

只想學習如何處理所有這些寶石，並且在使用'gem install x'安裝任何東西時遇到問題。我到處都看到它不是使用'sudo'的最佳做法。

-facts-

創業板安裝黃瓜回報 'You don't have write permissions for the /Library/Ruby/Gems/2.0.0 directory.'

其中寶石返回/usr/bin/gem

寶石ENV返回

RubyGems Environment: 
    - RUBYGEMS VERSION: 2.0.14.1 
    - RUBY VERSION: 2.0.0 (2015-12-16 patchlevel 648) [universal.x86_64-darwin16] 
    - INSTALLATION DIRECTORY: /Library/Ruby/Gems/2.0.0 
    - RUBY EXECUTABLE: /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby 
    - EXECUTABLE DIRECTORY: /usr/local/bin 
    - RUBYGEMS PLATFORMS: 
    - ruby 
    - universal-darwin-16 
    - GEM PATHS: 
    - /Library/Ruby/Gems/2.0.0 
    - /Users/username/.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 
    - "gem" => "--no-ri --no-rdoc" 
    - REMOTE SOURCES: 
    - https://rubygems.org/ 

我已經安裝了RVM但回報 -

No rvm rubies installed yet. Try 'rvm help install'

不知道該怎麼做，將不勝感激幫助。

Answer 1

您需要root /管理員權限才能寫入/及其子目錄。不使用sudo或su就不能安裝任何東西。您的問題或類似問題在此處得到解答：Installing gem or updating RubyGems fails with permissions error