Gem 安装问题 Mac 10.11.5（'没有将 nil 隐式转换为字符串'）

Question

我正在尝试做 gem install jekyll（或 github-pages），但没有任何效果。

> rvm install current && rvm use current
ruby-2.3.1
Using /Users/willwade/.rvm/gems/ruby-2.3.1
> gem install jekyll
ERROR:  While executing gem ... (TypeError)
no implicit conversion of nil into String

我尝试了不同的版本。例如1.9.3 及其类似的输出。例如。

> rvm use 1.9.3
Using /Users/willwade/.rvm/gems/ruby-1.9.3-p551
> gem install github-pages
Fetching: terminal-table-1.6.0.gem (100%)
Successfully installed terminal-table-1.6.0
Fetching: mercenary-0.3.6.gem (100%)
Successfully installed mercenary-0.3.6
Fetching: ffi-1.9.10.gem (100%)
Building native extensions.  This could take a while...
Successfully installed ffi-1.9.10
Fetching: rb-inotify-0.9.7.gem (100%)
Successfully installed rb-inotify-0.9.7
Fetching: rb-fsevent-0.9.7.gem (100%)
Successfully installed rb-fsevent-0.9.7
Fetching: listen-3.0.6.gem (100%)
Successfully installed listen-3.0.6
Fetching: jekyll-watch-1.4.0.gem (100%)
Successfully installed jekyll-watch-1.4.0
Fetching: sass-3.4.22.gem (100%)
Successfully installed sass-3.4.22
Fetching: jekyll-sass-converter-1.3.0.gem (100%)
Successfully installed jekyll-sass-converter-1.3.0
Fetching: rouge-1.10.1.gem (100%)
ERROR:  While executing gem ... (TypeError)
    can't convert nil into String

我也试过系统版本，例如用 sudo

> sudo gem install jekyll
Fetching: liquid-3.0.6.gem (100%)
Successfully installed liquid-3.0.6
Fetching: kramdown-1.11.1.gem (100%)
ERROR:  While executing gem ... (TypeError)
no implicit conversion of nil into String

（编辑）和2.2.0一样：

> rvm use 2.2.0
Using /Users/willwade/.rvm/gems/ruby-2.2.0
> gem install github-pages
Fetching: terminal-table-1.6.0.gem (100%)
Successfully installed terminal-table-1.6.0
Fetching: mercenary-0.3.6.gem (100%)
Successfully installed mercenary-0.3.6
Fetching: ffi-1.9.10.gem (100%)
Building native extensions.  This could take a while...
Successfully installed ffi-1.9.10
Fetching: rb-inotify-0.9.7.gem (100%)
Successfully installed rb-inotify-0.9.7
Fetching: rb-fsevent-0.9.7.gem (100%)
Successfully installed rb-fsevent-0.9.7
Fetching: listen-3.0.6.gem (100%)
Successfully installed listen-3.0.6
Fetching: jekyll-watch-1.4.0.gem (100%)
Successfully installed jekyll-watch-1.4.0
Fetching: sass-3.4.22.gem (100%)
Successfully installed sass-3.4.22
Fetching: jekyll-sass-converter-1.3.0.gem (100%)
Successfully installed jekyll-sass-converter-1.3.0
Fetching: rouge-1.10.1.gem (100%)
ERROR:  While executing gem ... (TypeError)
no implicit conversion of nil into String

关于修复的任何想法？这可能是什么？

Answer 1

您可以尝试以下方法之一：

• 降级到以前的 gem
• 确保页面没有语法错误
• 确保配置文件不为空

希望其中之一有所帮助。

Answer 2

我不知道是什么导致了头痛。但这为我解决了问题：

1. 重启 mac。
2. Command + R
3. 打开一个终端。输入csrutil disable
4. 重启
5. gem install jekyll 或 sudo..（即使用系统 ruby​​）
6. 重复步骤 1 和 2 - 并输入 csrutil enable

El Capitan 和 Ruby 基本上存在 SIP 问题。请参阅 https://apple.stackexchange.com/questions/208478/how-do-i-disable-system-integrity-protection-sip-aka-rootless-on-os-x-10-11