From: ajay paswan Date: 2012-10-18T16:08:41+09:00 Subject: ERROR: Isn't a Gem::Specification (NilClass instead). why I am getting this error? and how to fix it? gem --version [/usr/lib/ruby/gems/1.8/specifications/treetop-1.4.11.gemspec] isn't a Gem::Specification (NilClass instead). [/usr/lib/ruby/gems/1.8/specifications/i18n-0.6.1.gemspec] isn't a Gem::Specification (NilClass instead). [/usr/lib/ruby/gems/1.8/specifications/polyglot-0.3.3.gemspec] isn't a Gem::Specification (NilClass instead). [/usr/lib/ruby/gems/1.8/specifications/mail-2.4.4.gemspec] isn't a Gem::Specification (NilClass instead). [/usr/lib/ruby/gems/1.8/specifications/mime-types-1.19.gemspec] isn't a Gem::Specification (NilClass instead). 1.8.24 -- Posted via http://www.ruby-forum.com/.