# No such file to load -- uuid (MissingSourceFile)

**URL:** <https://www.ruby-forum.com/t/no-such-file-to-load-uuid-missingsourcefile/178502>\
**Category:** Rails\
**Created:** [November 5, 2009, 3:36pm UTC](https://www.ruby-forum.com/t/no-such-file-to-load-uuid-missingsourcefile/178502 "2009-11-05T15:36:31Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![suki](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/94ad74/32.png) [@suki](https://www.ruby-forum.com/u/suki)\
**Post date:** [November 5, 2009, 3:36pm UTC](https://www.ruby-forum.com/t/no-such-file-to-load-uuid-missingsourcefile/178502/1 "2009-11-05T15:36:31Z")

</div>

Hi there,

I was trying to use both Ruby 1.8.6 and Ruby 1.9.1 on my laptop.

After I install Ruby 1.9.1, I went back to my Ruby 1.8.6, and run :  
Ruby script/server. I got the following error:

/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/  
1.8/rubygems/custom\_require.rb:27:in `gem\_original\_require’: no such  
file to load – uuid (MissingSourceFile)

Maybe it could not fine the file, how can I fix this?

Thank you very much!