# MacOSX (10.7) vr Run Error

**URL:** <https://www.ruby-forum.com/t/macosx-10-7-vr-run-error/245354>\
**Category:** Ruby-Gnome 2\
**Created:** [May 19, 2013, 5:23pm UTC](https://www.ruby-forum.com/t/macosx-10-7-vr-run-error/245354 "2013-05-19T17:23:58Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Sadaf\_N](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/858c86/32.png) [@Sadaf\_N](https://www.ruby-forum.com/u/Sadaf_N)\
**Post date:** [May 19, 2013, 5:23pm UTC](https://www.ruby-forum.com/t/macosx-10-7-vr-run-error/245354/1 "2013-05-19T17:23:58Z")

</div>

I installed everything like the site said with no errors, but when I  
tried to run the program by entering “vr” at the command prompt I  
received this message:

/Users/Castor/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/rubygems/core\_ext/kernel\_require.rb:45:in  
`require': cannot load such file -- rubygems/builder (LoadError) from /Users/Castor/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:45:in`require’  
from  
/Users/Castor/.rvm/gems/ruby-2.0.0-p0/gems/visualruby-0.1.2/vr:15:in  
`<top (required)>' from /Users/Castor/.rvm/gems/ruby-2.0.0-p0/bin/vr:23:in`load’  
from /Users/Castor/.rvm/gems/ruby-2.0.0-p0/bin/vr:23:in `’

Also, I previously downloaded XQuartz, which opens when I issue the “vr”  
command.

Thank you!