ruby-gem関係のエラーが出る | The-miyakou.comInvalid gemspec in [/Library/Ruby/Gems/1.8/specifications/json-1.6.1.gemspec]: invalid date format in specification: "2011-09-18 00:00:00.000000000Z" Invalid gemspec in [/Library/Ruby/Gems/1.8/specifications/rack-cache-1.0.3.gemspec]: invalid date format in specification: "2011-08-27 00:00:00.000000000Z" Invalid gemspec in [/Library/Ruby/Gems/1.8/specifications/tilt-1.3.3.gemspec]: invalid date fo
