# Ruby 1.9.1, cygwin & rails 2.3.2: undefined method camelize

**URL:** <https://www.ruby-forum.com/t/ruby-1-9-1-cygwin-rails-2-3-2-undefined-method-camelize/168865>\
**Category:** Rails\
**Created:** [May 26, 2009, 9:22pm UTC](https://www.ruby-forum.com/t/ruby-1-9-1-cygwin-rails-2-3-2-undefined-method-camelize/168865 "2009-05-26T21:22:08Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![dmack](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/dec6dc/32.png) [@dmack](https://www.ruby-forum.com/u/dmack)\
**Post date:** [May 26, 2009, 9:22pm UTC](https://www.ruby-forum.com/t/ruby-1-9-1-cygwin-rails-2-3-2-undefined-method-camelize/168865/1 "2009-05-26T21:22:08Z")

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I tried to get this working and ran into a problem:

- latest cygwin
- ruby 1.9.1p129 (same problem with p0). install in /opt/ruby19
- rails 2.3.2

1. Installed ruby 1.9.1p129 with: --prefix=/opt/ruby19. No errors  
or problems. make install worked.

2. gem install rails

No problem, rails installs just fine in the /opt/ruby19 hierarchy.

1. Attempt to create a new rails application: FAILED

Anyone have any ideas on how this could be fixed?

If I use a 1.8.x version of ruby, everything works fine.

???

Thanks,

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<div class="post-metadata">

**Author:** ![dmack](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/dec6dc/32.png) [@dmack](https://www.ruby-forum.com/u/dmack)\
**Post date:** [May 26, 2009, 10:16pm UTC](https://www.ruby-forum.com/t/ruby-1-9-1-cygwin-rails-2-3-2-undefined-method-camelize/168865/2 "2009-05-26T22:16:11Z")

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Sent from my iPhone

On May 26, 2009, at 12:21 PM, dmack [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)  
wrote:

> 1. gem install rails  
> undefined method `camelize’ for “app”:String  
> /opt/ruby19/lib/ruby/gems/1.9.1/gems/rails-2.3.2/lib/rails\_generator/  
> If I use a 1.8.x version of ruby, everything works fine.
> 
> ???
> 
> Thanks,

Are you wanting to use ruby 1.9.1 or ruby 1.8.6? If you’re trying to  
use ruby 1.9.1, then you you’ll want to use the gem command for it.  
For example, the command might be

gem1.9 install rails

instead of

gem install rails

-Conrad

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<div class="post-metadata">

**Author:** ![dmack](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/dec6dc/32.png) [@dmack](https://www.ruby-forum.com/u/dmack)\
**Post date:** [May 29, 2009, 5:33pm UTC](https://www.ruby-forum.com/t/ruby-1-9-1-cygwin-rails-2-3-2-undefined-method-camelize/168865/3 "2009-05-29T17:33:14Z")

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I’m not having trouble installing rails. Ruby 1.9.1 came with its own  
copy of the gem binary which I have all installed in a separate  
hierarchy. But, when I run the rails command to create a new test  
application, that’s when I get the undefined method camelize for  
app:String

I have googled around a bit and found a reference to a FreeBSD user  
having the same problem. As I said earlier, this works perfectly on  
my Mac OS X Leopard system so I’ll do most of my concept work there  
using ruby 1.9.1 & rails 2.3.2.

If anyone has any other ideas, I’m all ears. Luckily I don’t  
absolutely have to have this working on cygwin … it would just be  
nice.

My Ruby 1.8.x / Rails 2.3.2 Environments all work fine. This is just  
for Ruby 1.9.1p129 + Rails 2.3.2 which I’m having trouble with. Yes,  
I really want to use Ruby 1.9.1 for projects that are not in  
production yet as this gives me exposure to the the new ruby and will  
help me eventually with porting of my old apps.

Actually, I’ve ported a few of my Rails applications from Ruby 1.8.6/  
Ruby 1.8.7 to Ruby 1.9.1 with very minor effort so it’s not as big of  
a deal as people seem to make it out.

Thanks for your suggestion anyway.

Dan

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<div class="post-metadata">

**Author:** ![dmack](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/dec6dc/32.png) [@dmack](https://www.ruby-forum.com/u/dmack)\
**Post date:** [June 1, 2009, 4:38pm UTC](https://www.ruby-forum.com/t/ruby-1-9-1-cygwin-rails-2-3-2-undefined-method-camelize/168865/4 "2009-06-01T16:38:05Z")

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Thanks for the tip. I already have that package installed so the  
problem might be that my private (/opt/ruby…/) copy of ruby didn’t  
see or detect the iconv stuff when I built it from the source code.

I don’t see the ruby-iconv package on cygwin so there must be another  
package or build option I’m missing there.

Dan

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<div class="post-metadata">

**Author:** ![dmack](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/dec6dc/32.png) [@dmack](https://www.ruby-forum.com/u/dmack)\
**Post date:** [May 30, 2009, 9:17am UTC](https://www.ruby-forum.com/t/ruby-1-9-1-cygwin-rails-2-3-2-undefined-method-camelize/168865/5 "2009-05-30T09:17:33Z")

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simply install ruby-iconv  
([http://john.vipvip.com/blog/?p=71](http://john.vipvip.com/blog/?p=71))