ruby on rails - Invalid gemspec -Illformed requirement ["#<YAML::Syck::DefaultKey:0xb5f9c990> 3.2.0"]

Question

Invalid gemspec in [/usr/lib/ruby/gems/1.8/specifications/activemodel-3.2.0.gemspec]: Illformed requirement ["#<YAML::Syck::DefaultKey:0xb5f9c990> 3.2.0"]

From trying to do a sudo gem update for other issues

getting this hundreds of time as sudo gem update goes through each gem and gets the message for most of them

Answer 1

This can happen when upgrading to Rails 3.2.

Updating Rubygems should fix this issue.

gem update --system

Hope this helps.