rubygems – 为什么ZSH为我的RVM宝石返回“命令未找到”错误？

从那以后,当我使用Ruby宝石时,我会发现一个奇怪的错误.

实质上所有的宝石都会返回一个“Command not found”错误,即使它们被安装.

这是一个直接从我的ZSH终端的例子：

>显示RVM ruby??正在运行.
> rvm列表显示我的RVM ruby??是我想要的默认值.
> rvm宝石列表显示我的宝石已经安装,请注意sass宝石.
>运行一个简单的sass –watch命令返回没有找到的zsh：command：sass.
为了防万一有帮助,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

如果任何人有一个想法,为什么一切似乎都在运行和安装,但后来实际上并没有找到并运行gem命令,我将不胜感激你的帮助.