# Error with Gem Outdated command **URL:** \ **Category:** Rails\ **Created:** [May 29, 2010, 5:17pm UTC](https://www.ruby-forum.com/t/error-with-gem-outdated-command/189355 "2010-05-29T17:17:23Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![johnt519](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/cab0a1/32.png) [@johnt519](https://www.ruby-forum.com/u/johnt519)\ **Post date:** [May 29, 2010, 5:17pm UTC](https://www.ruby-forum.com/t/error-with-gem-outdated-command/189355/1 "2010-05-29T17:17:23Z")
Trying to run ‘gem outdated’ on OS X (10.6.3) and I’m getting: sudo gem outdated ERROR: While executing gem … (NoMethodError) undefined method `first’ for nil:NilClass Here’s my info: john$ gem env RubyGems Environment: - RUBYGEMS VERSION: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/](http://rubygems.org/) Doing a ‘sudo gem update’ does work fine (it just updated a couple fine). Anyone? Thanks. ---
**Author:** ![johnt519](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/cab0a1/32.png) [@johnt519](https://www.ruby-forum.com/u/johnt519)\ **Post date:** [May 29, 2010, 5:19pm UTC](https://www.ruby-forum.com/t/error-with-gem-outdated-command/189355/2 "2010-05-29T17:19:45Z")
John T. wrote: > Trying to run ‘gem outdated’ on OS X (10.6.3) and I’m getting: More info: gem outdated -V GET [http://rubygems.org/latest\_specs.4.8.gz](http://rubygems.org/latest_specs.4.8.gz) 302 Found GET [http://production.s3.rubygems.org/latest\_specs.4.8.gz](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200 OK ERROR: While executing gem … (NoMethodError) undefined method `first’ for nil:NilClass john$ gem outdated --backtrace ERROR: While executing gem … (NoMethodError) undefined method `first' for nil:NilClass /Library/Ruby/Site/1.8/rubygems/commands/outdated_command.rb:26:in `execute’ /Library/Ruby/Site/1.8/rubygems/commands/outdated\_command.rb:21:in `each' /Library/Ruby/Site/1.8/rubygems/commands/outdated_command.rb:21:in `execute’ /Library/Ruby/Site/1.8/rubygems/command.rb:270:in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 ---
**Author:** ![johnt519](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/cab0a1/32.png) [@johnt519](https://www.ruby-forum.com/u/johnt519)\ **Post date:** [August 4, 2010, 2:12am UTC](https://www.ruby-forum.com/t/error-with-gem-outdated-command/189355/3 "2010-08-04T02:12:29Z")
Not one to bump topics, but I’m still getting this error… and it’s been 2 months… Thanks John T. wrote: 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/](http://rubygems.org/) More info: gem outdated -V GET [http://rubygems.org/latest\_specs.4.8.gz](http://rubygems.org/latest_specs.4.8.gz) 302 Found GET [http://production.s3.rubygems.org/latest\_specs.4.8.gz](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. ---
**Author:** ![johnt519](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/cab0a1/32.png) [@johnt519](https://www.ruby-forum.com/u/johnt519)\ **Post date:** [August 4, 2010, 2:25am UTC](https://www.ruby-forum.com/t/error-with-gem-outdated-command/189355/4 "2010-08-04T02:25:20Z")
John T. wrote: > Not one to bump topics, but I’m still getting this error… and it’s been > 2 months… I can’t help, but you’ll get more luck on the Rubygems mailing list or the main Ruby list.