# What's causing "support for RegExp patterns is deprecated" error?

**URL:** <https://www.ruby-forum.com/t/whats-causing-support-for-regexp-patterns-is-deprecated-error/150153>\
**Category:** Rails\
**Created:** [October 4, 2008, 8:26pm UTC](https://www.ruby-forum.com/t/whats-causing-support-for-regexp-patterns-is-deprecated-error/150153 "2008-10-04T20:26:57Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![jawosis](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/f04885/32.png) [@jawosis](https://www.ruby-forum.com/u/jawosis)\
**Post date:** [October 4, 2008, 8:26pm UTC](https://www.ruby-forum.com/t/whats-causing-support-for-regexp-patterns-is-deprecated-error/150153/1 "2008-10-04T20:26:57Z")

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railer:sphinx railer$ script/generate scaffold Dummy  
Gem::SourceIndex#search support for Regexp patterns is deprecated  
/Library/Ruby/Gems/1.8/gems/rails-2.1.1/lib/rails\_generator/lookup.rb:  
211:in `each’ is outdated  
exists app/models/  
exists app/controllers/

…

* * *

MAC OS X 10.5.5  
1.8.6  
railer:sphinx railer$ gem -v  
1.3.0

railer:sphinx railer$ rails -v  
Rails 2.1.1

railer:sphinx railer$ gem env  
RubyGems Environment:

- RUBYGEMS VERSION: 1.3.0
- RUBY VERSION: (2008-03-03 patchlevel 114) [universal-darwin9.0]
- INSTALLATION DIRECTORY: /Library/Ruby/Gems/1.8
- RUBY EXECUTABLE: /System/Library/Frameworks/Ruby.framework/  
Versions/1.8/usr/bin/ruby
- EXECUTABLE DIRECTORY: /usr/bin
- RUBYGEMS PLATFORMS:
  - ruby
  - universal-darwin-9

- GEM PATHS:
  - /Library/Ruby/Gems/1.8
  - /Users/railer/.gem/ruby/1.8
  - /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/  
ruby/gems/1.8

- GEM CONFIGURATION:
  - :update\_sources =\> true
  - :verbose =\> true
  - :benchmark =\> false
  - :backtrace =\> false
  - :bulk\_threshold =\> 1000
  - :sources =\> [“[http://gems.rubyforge.org/](http://gems.rubyforge.org/)”,  
"[http://gems.github.com](http://gems.github.com)  
"]

- REMOTE SOURCES:
  - [http://gems.rubyforge.org/](http://gems.rubyforge.org/)
  - [http://gems.github.com](http://gems.github.com)

---

<div class="post-metadata">

**Author:** ![jawosis](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/f04885/32.png) [@jawosis](https://www.ruby-forum.com/u/jawosis)\
**Post date:** [October 4, 2008, 11:57pm UTC](https://www.ruby-forum.com/t/whats-causing-support-for-regexp-patterns-is-deprecated-error/150153/2 "2008-10-04T23:57:23Z")

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On 4 Oct 2008, at 19:26, Jochen K. wrote:

> railer:sphinx railer$ script/generate scaffold Dummy  
> Gem::SourceIndex#search support for Regexp patterns is deprecated  
> /Library/Ruby/Gems/1.8/gems/rails-2.1.1/lib/rails\_generator/lookup.rb:  
> 211:in `each’ is outdated  
> exists app/models/  
> exists app/controllers/

rubygems 1.3 is brand new, sounds like they’ve deprecated something  
that current versions of rails use. It’s not an error, it’s a warning  
that future versions of rubygems won’t support this (and that rails  
should be fixed accordingly)

Fred