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我能够通过做sudo gem install annotate来安装注释（由于权限被拒绝，我不得不使用sudo）。它似乎已经安装，但运行时出现错误。我认为这个问题可能与卸载rvm有关。 （现在使用rbenv）。当我安装RVM我删除了〜/ .rvm文件夹，并在.bash_profile中从rvm迁移到rbenv后，gem annotate无法正常工作
无法安装注释为普通用户删除引用
Chris-Muenchs-MacBook-Air:wifiwaiters cmuench$ gem install annotate
ERROR: While executing gem ... (Errno::EACCES)
Permission denied @ rb_sysopen - /Users/cmuench/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/annotate-2.6.5/AUTHORS.rdoc
Chris-Muenchs-MacBook-Air:wifiwaiters cmuench$
能够通过sudo来安装
Chris-Muenchs-MacBook-Air:wifiwaiters cmuench$ sudo gem install annotate
Successfully installed annotate-2.6.5
Parsing documentation for annotate-2.6.5
Done installing documentation for annotate after 0 seconds
1 gem installed
SUDO
Chris-Muenchs-MacBook-Air:wifiwaiters cmuench$ sudo annotate
/Users/cmuench/.rbenv/versions/2.1.2/lib/ruby/2.1.0/rubygems/dependency.rb:298:in `to_specs': Could not find 'annotate' (>= 0) among 54 total gem(s) (Gem::LoadError)
from /Users/cmuench/.rbenv/versions/2.1.2/lib/ruby/2.1.0/rubygems/dependency.rb:309:in `to_spec'
from /Users/cmuench/.rbenv/versions/2.1.2/lib/ruby/2.1.0/rubygems/core_ext/kernel_gem.rb:53:in `gem'
from /Users/cmuench/.rbenv/versions/2.1.2/bin/annotate:22:in `<main>'
NON SUDO
Chris-Muenchs-MacBook-Air:wifiwaiters cmuench$ annotate
/Users/cmuench/Desktop/WifiWaiters-Repos/wifiwaiters/Gemfile:24:in `evaluate': compile error (SyntaxError)
/Users/cmuench/Desktop/WifiWaiters-Repos/wifiwaiters/Gemfile:24: syntax error, unexpected ':', expecting $end
gem 'sdoc', '~> 0.4.0', group: :doc
^
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.10/lib/bundler/definition.rb:17:in `build'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.10/lib/bundler.rb:136:in `definition'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.10/lib/bundler.rb:124:in `load'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.10/lib/bundler.rb:107:in `setup'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.10/lib/bundler/setup.rb:6
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems/custom_require.rb:36:in `gem_original_require'
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems/custom_require.rb:36:in `require'
from /Users/cmuench/Desktop/WifiWaiters-Repos/wifiwaiters/config/boot.rb:4
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `require'
from /Users/cmuench/Desktop/WifiWaiters-Repos/wifiwaiters/config/application.rb:1
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `require'
from ./Rakefile:4
from /Library/Ruby/Gems/1.8/gems/annotate-2.4.0/lib/annotate.rb:17:in `load'
from /Library/Ruby/Gems/1.8/gems/annotate-2.4.0/lib/annotate.rb:17:in `load_tasks'
from /Library/Ruby/Gems/1.8/gems/annotate-2.4.0/bin/annotate:66
from /usr/bin/annotate:19:in `load'
from /usr/bin/annotate:19
Chris-Muenchs-MacBook-Air:wifiwaiters cmuench$