Rails 3.2のアップグレードが失敗する

Rails v3.2にアップグレードした後にこのエラーが発生します。私は前に3.2.0.rc2を実行していて、正常に動作していました。Rails 3.2のアップグレードが失敗する

Invalid gemspec in [/Users/kapil/.rvm/gems/ruby-1.9.2-p0/specifications/actionmailer-3.2.0.gemspec]: Illformed requirement ["#<Syck::DefaultKey:0x00000108a21eb8> 3.2.0"] 
Invalid gemspec in [/Users/kapil/.rvm/gems/ruby-1.9.2-p0/specifications/actionpack-3.2.0.gemspec]: Illformed requirement ["#<Syck::DefaultKey:0x00000108995dc8> 3.2.0"] 
Invalid gemspec in [/Users/kapil/.rvm/gems/ruby-1.9.2-p0/specifications/activemodel-3.2.0.gemspec]: Illformed requirement ["#<Syck::DefaultKey:0x00000108a64858> 3.2.0"] 
Invalid gemspec in [/Users/kapil/.rvm/gems/ruby-1.9.2-p0/specifications/activerecord-3.2.0.gemspec]: Illformed requirement ["#<Syck::DefaultKey:0x00000108840a68> 3.2.0"] 
Invalid gemspec in [/Users/kapil/.rvm/gems/ruby-1.9.2-p0/specifications/activeresource-3.2.0.gemspec]: Illformed requirement ["#<Syck::DefaultKey:0x000001089b2658> 3.2.0"] 
Invalid gemspec in [/Users/kapil/.rvm/gems/ruby-1.9.2-p0/specifications/rails-3.2.0.gemspec]: Illformed requirement ["#<Syck::DefaultKey:0x000001073d4fe8> 3.2.0"] 
Invalid gemspec in [/Users/kapil/.rvm/gems/ruby-1.9.2-p0/specifications/railties-3.2.0.gemspec]: Illformed requirement ["#<Syck::DefaultKey:0x00000108913dc8> 3.2.0"] 
Invalid gemspec in [/Users/kapil/.rvm/gems/ruby-1.9.2-p0/specifications/actionmailer-3.2.0.gemspec]: Illformed requirement ["#<Syck::DefaultKey:0x00000108a21eb8> 3.2.0"] 
Invalid gemspec in [/Users/kapil/.rvm/gems/ruby-1.9.2-p0/specifications/actionpack-3.2.0.gemspec]: Illformed requirement ["#<Syck::DefaultKey:0x00000108995dc8> 3.2.0"] 
Invalid gemspec in [/Users/kapil/.rvm/gems/ruby-1.9.2-p0/specifications/activemodel-3.2.0.gemspec]: Illformed requirement ["#<Syck::DefaultKey:0x00000108a64858> 3.2.0"] 
Invalid gemspec in [/Users/kapil/.rvm/gems/ruby-1.9.2-p0/specifications/activerecord-3.2.0.gemspec]: Illformed requirement ["#<Syck::DefaultKey:0x00000108840a68> 3.2.0"] 
Invalid gemspec in [/Users/kapil/.rvm/gems/ruby-1.9.2-p0/specifications/activeresource-3.2.0.gemspec]: Illformed requirement ["#<Syck::DefaultKey:0x000001089b2658> 3.2.0"] 
Invalid gemspec in [/Users/kapil/.rvm/gems/ruby-1.9.2-p0/specifications/rails-3.2.0.gemspec]: Illformed requirement ["#<Syck::DefaultKey:0x000001073d4fe8> 3.2.0"] 
Invalid gemspec in [/Users/kapil/.rvm/gems/ruby-1.9.2-p0/specifications/railties-3.2.0.gemspec]: Illformed requirement ["#<Syck::DefaultKey:0x00000108913dc8> 3.2.0"]

出典

2012-01-20 kapso

どのバージョンを使用していると更新？ gem --version –