键入“ pod install”时无法将Cocoapods安装到应用程序中（错误：无法构建gem本机扩展。）

Question

我正在使用OSX Yoemite，并且我已经在StackOverflow上访问了有关此问题的几乎所有问题，但没有一个有效的答案...我目前正在尝试使用命令“ pod install”，但出现此错误：

/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/fileutils.rb:245:in `mkdir': Permission denied - /Library/Ruby/Gems/2.0.0/extensions/universal-darwin-14/2.0.0/xcodeproj-0.16.1 (Errno::EACCES)
from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/fileutils.rb:245:in `fu_mkdir'
from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/fileutils.rb:219:in `block (2 levels) in mkdir_p'
from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/fileutils.rb:217:in `reverse_each'
from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/fileutils.rb:217:in `block in mkdir_p'
from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/fileutils.rb:203:in `each'
from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/fileutils.rb:203:in `mkdir_p'
from /Library/Ruby/Site/2.0.0/rubygems/ext/builder.rb:210:in `write_gem_make_out'
from /Library/Ruby/Site/2.0.0/rubygems/ext/builder.rb:132:in `build_error'
from /Library/Ruby/Site/2.0.0/rubygems/ext/builder.rb:171:in `rescue in build_extension'
from /Library/Ruby/Site/2.0.0/rubygems/ext/builder.rb:156:in `build_extension'
from /Library/Ruby/Site/2.0.0/rubygems/ext/builder.rb:198:in `block in build_extensions'
from /Library/Ruby/Site/2.0.0/rubygems/ext/builder.rb:195:in `each'
from /Library/Ruby/Site/2.0.0/rubygems/ext/builder.rb:195:in `build_extensions'
from /Library/Ruby/Site/2.0.0/rubygems/specification.rb:1436:in `block in build_extensions'
from /Library/Ruby/Site/2.0.0/rubygems/user_interaction.rb:45:in `use_ui'
from /Library/Ruby/Site/2.0.0/rubygems/specification.rb:1434:in `build_extensions'
from /Library/Ruby/Site/2.0.0/rubygems/stub_specification.rb:60:in `build_extensions'
from /Library/Ruby/Site/2.0.0/rubygems/basic_specification.rb:56:in `contains_requirable_file?'
from /Library/Ruby/Site/2.0.0/rubygems/core_ext/kernel_require.rb:68:in `block in require'
from /Library/Ruby/Site/2.0.0/rubygems/core_ext/kernel_require.rb:67:in `each'
from /Library/Ruby/Site/2.0.0/rubygems/core_ext/kernel_require.rb:67:in `find'
from /Library/Ruby/Site/2.0.0/rubygems/core_ext/kernel_require.rb:67:in `require'
from /Library/Ruby/Gems/2.0.0/gems/cocoapods-0.32.1/lib/cocoapods.rb:1:in `<top (required)>'
from /Library/Ruby/Site/2.0.0/rubygems/core_ext/kernel_require.rb:73:in `require'
from /Library/Ruby/Site/2.0.0/rubygems/core_ext/kernel_require.rb:73:in `require'
from /Library/Ruby/Gems/2.0.0/gems/cocoapods-0.32.1/bin/pod:32:in `<top (required)>'
from /usr/bin/pod:23:in `load'
from /usr/bin/pod:23:in `<main>'

它还说：错误：无法构建gem本机扩展。 有谁知道如何解决这一问题？ 谢谢！

Answer 1

试试这个（为我使用OSX 10.10）

1. 打开Xcode 6
2. 开启偏好设定
3. 点击位置标签
4. 将命令行工具版本更改为Xcode 6.0

5. 卸载cocoapods

   $ sudo gem卸载cocoapods

6. 安装xcodeproj

   $ sudo gem install xcodeproj

7. 安装cocoapods

   $ sudo gem install cocoapods

运行pod --version进行验证

Answer 2

 rvm reinstall ruby-2.0.0-p247 --with-gcc=clang --verify-downloads 1
 gem install xcodeproj
 gem install cocoapods

试试这些可能会有所帮助

Answer 3

好的，我知道我在这里参加聚会迟到了，但是这里是一些给后代的信息，以防他们遇到与我相同的问题。

我遇到的问题是由于我的项目目录是由另一个用户创建的（因此我没有执行mkdir的权限）。 更新权限（或者在我的情况下，使用我的用户帐户重新创建项目目录）解决了该问题。

希望这可以帮助！ :)