macos - OS X升级10.11后gem无法使用

Question

执行了一下，gem install ***
提示:

ERROR: While executing gem ... (Gem::FilePermissionError)
You don't have write permissions for the /Library/Ruby/Gems/2.0.0 directory.

于是用，sudo gem install ***
提示:

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

之前用10.10时没有这个情况，大家有遇到过这个问题吗?

Answer 1

It should be possible to restart after executing

. After upgrading to 10.11, many apps have encountered this pitfall. csrutil disable

But for my problem, I used

to get another one, and then it ran normally. brew install ruby

Answer 2

This is because of SIP (System Integrity Protection).

You need to go to Recovery Mode, open Terminal, enter csrutil disable, and then restart after execution.

Answer 3

rootless