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From: John T. on 1 Jun 2010 08:47
(realized this should have been posted here, not the Rails group...)

Trying to run 'gem outdated' on OS X (10.6.3) and I'm getting:

sudo gem outdated
ERROR: While executing gem ... (NoMethodError)
undefined method `first' for nil:NilClass

Here's my info:

john$ gem env
RubyGems Environment:
- RUBYGEMS VERSION: 1.3.7
- RUBY VERSION: 1.8.7 (2009-06-08 patchlevel 173)
[universal-darwin10.0]
- 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-10
- GEM PATHS:
- /Library/Ruby/Gems/1.8
- /Users/john/.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
- REMOTE SOURCES:
- http://rubygems.org/


More info:

gem outdated -V
GET http://rubygems.org/latest_specs.4.8.gz
302 Found
GET http://production.s3.rubygems.org/latest_specs.4.8.gz
200 OK
ERROR: While executing gem ... (NoMethodError)
undefined method `first' for nil:NilClass

john$ gem outdated --backtrace
ERROR: While executing gem ... (NoMethodError)
undefined method `first' for nil:NilClass
/Library/Ruby/Site/1.8/rubygems/commands/outdated_command.rb:26:in
`execute'
/Library/Ruby/Site/1.8/rubygems/commands/outdated_command.rb:21:in
`each'
/Library/Ruby/Site/1.8/rubygems/commands/outdated_command.rb:21:in
`execute'
/Library/Ruby/Site/1.8/rubygems/command.rb:270:in `invoke'
/Library/Ruby/Site/1.8/rubygems/command_manager.rb:134:in
`process_args'
/Library/Ruby/Site/1.8/rubygems/command_manager.rb:104:in `run'
/Library/Ruby/Site/1.8/rubygems/gem_runner.rb:58:in `run'
/usr/bin/gem:21



Doing a 'sudo gem update' does work fine (it just updated a couple
fine).

Anyone? Thanks.
--
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