相关疑难解决方法(0)

我无法fakes3在El Capitan Beta 5上安装和运行gem.

我试过了:

sudo gem install fakes3
ERROR:  While executing gem ... (Errno::EPERM)
    Operation not permitted - /usr/bin/fakes3

然后我尝试用cocoapods方式做.它适用于cocoapods,但不适用于fakes3.

mkdir -p $HOME/Software/ruby
export GEM_HOME=$HOME/Software/ruby
gem install cocoapods
[...]
1 gem installed
gem install fakes3
ERROR:  While executing gem ... (Gem::FilePermissionError)
    You don't have write permissions for the /Library/Ruby/Gems/2.0.0 directory.

安装OS X El Capitan(10.11)后,我的红宝石指南针不再工作了.尝试安装指南针后,我收到如下错误消息:

$ sudo gem install compass
  ERROR:  While executing gem ... (Errno::EPERM)
      Operation not permitted - /usr/bin/compass

如何解决这个问题？