Question

I used to run the default bash terminal that comes with Mac Os X Lion but have recently upgraded to ZSH with the Oh My Zsh addon.

Since then I get an odd error when using Ruby gems.

In essence all gems return a “Command not found” error even though they are installed.

---

Here is an example straight from my ZSH terminal:

1. Shows that the RVM ruby is running as it should.
2. rvm list shows my RVM ruby to be the default as I want it.
3. rvm gem list shows that my gems are installed, note the sass gem .
4. Running a simple sass --watch command returns zsh: command not found: sass.

5. Just in case it helps, my $PATH variable output.

   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
   

If anyone has an idea of why everything appears to be running and be installed but then doesn’t actually find and run the gem command I would appreciate your help.

Answer 1

check your rc files

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

most likely in one of those PATH is reset after RVM was sourced

also some oh-my-zsh plugins can break stuff, try disabling them and enabling one by one.