# About rb2js converter

**URL:** <https://www.ruby-forum.com/t/about-rb2js-converter/125139>\
**Category:** Ruby\
**Created:** [January 6, 2008, 2:02am UTC](https://www.ruby-forum.com/t/about-rb2js-converter/125139 "2008-01-06T02:02:29Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![z4n9ief](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/z/7993a0/32.png) [@z4n9ief](https://www.ruby-forum.com/u/z4n9ief)\
**Post date:** [January 6, 2008, 2:02am UTC](https://www.ruby-forum.com/t/about-rb2js-converter/125139/1 "2008-01-06T02:02:29Z")

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Hi all,

I would like to use rb2js converter but when I enter the command:  
$ ruby /Users/cyril/Downloads/Ruby2JS/test.rb

I’ve got this error:  
/Library/Ruby/Site/1.8/rubygems/custom\_require.rb:27:in  
`gem_original_require': no such file to load -- parse_tree (LoadError) from /Library/Ruby/Site/1.8/rubygems/custom_require.rb:27:in`require’  
from ./rb2js.rb:2  
from /Users/cyril/Downloads/Ruby2JS/test.rb:1:in `require’  
from /Users/cyril/Downloads/Ruby2JS/test.rb:1

I work on Mac OS X 10.5 and I use ruby 1.8.6 (2007-09-24 patchlevel  
111) [universal-darwin9.0].

Thanks you very much! 🙂

Zang’

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**Author:** ![z4n9ief](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/z/7993a0/32.png) [@z4n9ief](https://www.ruby-forum.com/u/z4n9ief)\
**Post date:** [January 6, 2008, 2:27am UTC](https://www.ruby-forum.com/t/about-rb2js-converter/125139/2 "2008-01-06T02:27:18Z")

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On Jan 5, 2008 8:02 PM, Zangief I. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote:

> from /Users/cyril/Downloads/Ruby2JS/test.rb:1:in `require’  
> from /Users/cyril/Downloads/Ruby2JS/test.rb:1

sudo gem install ParseTree

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**Author:** ![z4n9ief](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/z/7993a0/32.png) [@z4n9ief](https://www.ruby-forum.com/u/z4n9ief)\
**Post date:** [January 6, 2008, 9:53am UTC](https://www.ruby-forum.com/t/about-rb2js-converter/125139/3 "2008-01-06T09:53:50Z")

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you might need to run ruby with -rubygems switch, or require ‘rubygems’  
before require ‘parsetree’

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**Author:** ![z4n9ief](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/z/7993a0/32.png) [@z4n9ief](https://www.ruby-forum.com/u/z4n9ief)\
**Post date:** [January 6, 2008, 10:26am UTC](https://www.ruby-forum.com/t/about-rb2js-converter/125139/4 "2008-01-06T10:26:58Z")

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> sudo gem install ParseTree

It’s perfect,  
Thanks a lot.

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**Author:** ![z4n9ief](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/z/7993a0/32.png) [@z4n9ief](https://www.ruby-forum.com/u/z4n9ief)\
**Post date:** [January 6, 2008, 12:43pm UTC](https://www.ruby-forum.com/t/about-rb2js-converter/125139/5 "2008-01-06T12:43:34Z")

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Zangief I. wrote:

> Hi all,
> 
> I would like to use rb2js converter but when I enter the command:  
> $ ruby /Users/cyril/Downloads/Ruby2JS/test.rb

Seems like a Ruby to Javascript converter.

You might want to try out RubyJS as well which you can find here:

[http://www.ntecs.de/hg-projects/rubyjs/](http://www.ntecs.de/hg-projects/rubyjs/)

Regards,

Michael