ios 卸载后无法安装可可豆荚，导致报错
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/30812777/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Cannot install cocoa pods after uninstalling, results in error
提问by Adrian Wacker
I removed cocoa pods because it claimed it had installed, but kept saying the command pod wasn't found afterward. When trying to reinstall cocoapods (sudo gem install cocoa pods -v) I get this error:
我删除了可可豆荚，因为它声称已安装，但后来一直说没有找到命令豆荚。尝试重新安装 cocoapods ( sudo gem install cocoa pods -v) 时出现此错误：
ERROR: While executing gem ... (Errno::EPERM) Operation not permitted - /usr/bin/pod
错误：执行 gem 时 ... (Errno::EPERM) 不允许操作 - /usr/bin/pod
Any ideas?
有任何想法吗？
回答by Kyle Browning
As it has been pointed out below by Ramesh Ramchandaran, this is a cleaner way of doing it, instead of getting around the Security features of OS X.
正如Ramesh Ramchandaran在下面指出的那样，这是一种更简洁的方法，而不是绕过 OS X 的安全功能。
sudo gem install -n /usr/local/bin cocoapods
Original Answer
原答案
I'm assuming you're running OS X 10.11.
我假设您运行的是 OS X 10.11。
This is happening because Apple has enabled rootless on the new install.
发生这种情况是因为 Apple 在新安装中启用了 rootless。
If you type:
如果您键入：
sudo nvram boot-args="rootless=0"; sudo reboot
in terminal.app, your computer will reboot with it disabled.
在 中terminal.app，您的计算机将在禁用的情况下重新启动。
Once that is done, type:
完成后，键入：
sudo gem install cocoapods -V
the -Vis for verbose and will spit out any errors if they happen.
这-V是详细的，如果发生错误，会吐出任何错误。
回答by Rajesh Ramachandran
As rootless does not affect /usr/local/bin, the following succeeds:
由于 rootless 不影响 /usr/local/bin，以下成功：
sudo gem install -n /usr/local/bin cocoapods
Any caveats?
有什么注意事项吗？
回答by Drew
Using home-brewor custom $GEM_HOMEcan help resolving the issue.
I did clean installation of ruby with brew:
brew install ruby
Now the gemstuff seem to happen relative to my /usr/local/bin*, which is exactly what I needed.
使用home-brew或自定义$GEM_HOME可以帮助解决问题。我用brew干净地安装了 ruby ：
brew install ruby
现在这些gem东西似乎相对于我的/usr/local/bin*，这正是我所需要的。
回答by PatrickDotStar
I recommend installing all your gems into your .gemfolder in your home folder to avoid using sudoor a ruby version manager as other people suggest.
我建议将所有 gem 安装到.gem主文件夹中的文件夹中，以避免sudo像其他人建议的那样使用ruby 版本管理器。
All you have to do is update your .bash_profileby adding these 2 lines. (Don‘t forget to restart your terminal after applying these changes)
您所要做的就是.bash_profile通过添加这两行来更新您的。（不要忘记在应用这些更改后重新启动终端）
export GEM_HOME=~/.gem
export PATH="$GEM_HOME/bin:$PATH"
回答by Naishta
After updgrading from Yosemite to El Capitan ( 10.11.4), I kept getting the below error message while trying to 'reinstall' Cocoapods ( after trying out pretty much all the solutions under different Stackoverflow threads and the Cocoapods issue-page itself, for the same issue)
从优胜美地升级到 El Capitan（10.11.4）后，我在尝试“重新安装”Cocoapods 时不断收到以下错误消息（在尝试了不同 Stackoverflow 线程和 Cocoapods 问题页面本身下的几乎所有解决方案之后，对于同样的问题）
"Could not find a valid gem 'cocoapods' (>= 0) in any repository"
However, quit terminal, restarted system, created new Xcode project from the scratch and then when i did 'pod install', it worked.
但是，退出终端，重新启动系统，从头开始创建新的 Xcode 项目，然后当我这样做时'pod install'，它起作用了。
Note: I was trying to use Alamofire and SwiftyJson cocoapods
注意：我试图使用 Alamofire 和 SwiftyJson cocoapods
