为什么 ZSH 会为我的 RVM gem 返回“找不到命令”错误？

Question

我曾经运行 Mac Os X Lion 附带的默认 bash 终端，但最近通过 Oh My Zsh 插件升级到 ZSH。

从那时起，我在使用 Ruby gem 时遇到了一个奇怪的错误。

本质上，所有 gem 都会返回“找不到命令”错误，即使它们已安装。

---

这是一个直接来自我的 ZSH 终端的示例：

1. 显示 RVM ruby​​ 正在正常运行。
2. rvm list 显示我的 RVM ruby​​ 是我想要的默认值。
3. rvm gem list 表明我的 gem 已安装，注意 sass gem。
4. 运行一个简单的sass --watch 命令返回zsh: command not found: sass。

5. 以防万一，我的$PATH 变量输出。

   Jannis-Mac-Pro: /Volumes/Storage2/Sites/git/mathewhawley.com/static
   → which ruby
   /Users/jannis/.rvm/rubies/ruby-1.9.2-p290/bin/ruby
   
   Jannis-Mac-Pro: /Volumes/Storage2/Sites/git/mathewhawley.com/static
   → rvm list     
   
   rvm rubies
   
   =* ruby-1.9.2-p290 [ x86_64 ]
   
   # => - current
   # =* - current && default
   #  * - default
   
   
   Jannis-Mac-Pro: /Volumes/Storage2/Sites/git/mathewhawley.com/static
   → rvm gem list
   Please note that `rvm gem ...` is only an alias to `rvm do gem ...`,
    it might work different as in earlier versions of RVM and will be shortly removed!
    Also note that you do not have to prefix every command with `rvm`, they should just work by itself.
   `rvm do gem list` is deprecated, use `rvm all do gem list` or `rvm 1.9.2 do gem list` instead.
   
   *** LOCAL GEMS ***
   
   addressable (2.2.7, 2.2.6)
   chunky_png (1.2.5)
   compass (0.11.7, 0.11.6, 0.11.5)
   css_parser (1.2.6)
   fssm (0.2.8.1, 0.2.7)
   grid-coordinates (1.2.0)
   haml (3.1.4, 3.1.3)
   htmlentities (4.3.1)
   json (1.6.5)
   nokogiri (1.5.0)
   oily_png (1.0.2)
   premailer (1.7.3)
   rake (0.9.2.2, 0.9.2)
   rb-fsevent (0.9.0, 0.4.3.1)
   rdoc (3.12)
   rubygems-update (1.8.17, 1.8.15, 1.8.13, 1.8.11)
   sass (3.1.15, 3.1.12, 3.1.10)
   stitch (0.1.3.2)
   
   Jannis-Mac-Pro: /Volumes/Storage2/Sites/git/mathewhawley.com/static
   → sass --style compressed --watch scss:css
   zsh: correct 'sass' to 'case' [nyae]? n
   zsh: command not found: sass
   
   Jannis-Mac-Pro: /Volumes/Storage2/Sites/git/mathewhawley.com/static
   → echo $PATH
   /Users/jannis/.rvm/gems/ruby-1.9.2-p290@global/bin:/Users/jannis/.rvm/rubies/ruby-1.9.2-p290/bin:/Users/jannis/.rvm/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin:/usr/local/git/bin
   

如果有人知道为什么一切似乎都在运行并已安装，但实际上并没有找到并运行 gem 命令，我将不胜感激。

Answer 1

检查你的 rc 文件

• .zshenv
• .zshrc
• .zlogin
• .zprofile

很可能其中一个PATH 在获得 RVM 后被重置

还有一些 oh-my-zsh 插件会破坏东西，请尝试禁用它们并逐个启用。

Answer 2

在我的情况下，这与 ZSH complains about RVM __rvm_cleanse_variables: function definition file not found 有关，并按照那里的说明解决了它。

Answer 3

按照 rvm 安装文档，我在 ~/.zshrc 中添加 2 行

#add $PATH in path
export PATH="$PATH: /opt/local/bin:/opt/local/sbin:/opt/local/bin:/opt/local/sbin:/Users/m/Downloads/temp/bin:/Applications/apache-ant-1.9.6/bin:/Users/m/Library/Android/sdk/platform-tools:/Users/m/Library/Android/sdk/tools:/Users/m/Desktop/python/vlfeat/bin/maci64:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/X11/bin:/Users/m/bin/FDK/Tools/osx"
source $ZSH/oh-my-zsh.sh
#rvm puby need this, get this file
source ~/.profile