Invalid gemspec.#<YAML::Syck::DefaultKey

How can I solve the problem "invalid gemspec"?

[root@-PC rubytest]# rails test
Invalid gemspec in
[/usr/lib/ruby/gems/1.8/specifications/activemodel-3.2.0.rc1.gemspec]:
Illformed requirement ["#<YAML::Syck::DefaultKey:0xb664a594> 3.2.0.rc1"]
Invalid gemspec in
[/usr/lib/ruby/gems/1.8/specifications/actionpack-3.2.0.rc1.gemspec]:
Illformed requirement ["#<YAML::Syck::DefaultKey:0xb668700c> 3.2.0.rc1"]
Invalid gemspec in
[/usr/lib/ruby/gems/1.8/specifications/railties-3.2.0.rc1.gemspec]:
Illformed requirement ["#<YAML::Syck::DefaultKey:0xb66cc79c> 3.2.0.rc1"]
      create
      create app/controllers
      create app/helpers
      create app/models
      create app/views/layouts
      create config/environments
      create config/initializers
      create config/locales
      create db
      create doc
      create lib
      create lib/tasks
      create log
      create public/images
      create public/javascripts
      create public/stylesheets
      create script/performance
      create test/fixtures
      create test/functional
      create test/integration
      create test/performance
      create test/unit
      create vendor
      create vendor/plugins
      create tmp/sessions
      create tmp/sockets
      create tmp/cache
      create tmp/pids
      create Rakefile
      create README
      create app/controllers/application_controller.rb
      create app/helpers/application_helper.rb
      create config/database.yml
      create config/routes.rb
      create config/locales/en.yml
      create db/seeds.rb
      create config/initializers/backtrace_silencers.rb
      create config/initializers/inflections.rb
      create config/initializers/mime_types.rb
      create config/initializers/new_rails_defaults.rb
      create config/initializers/session_store.rb
      create config/initializers/cookie_verification_secret.rb
      create config/environment.rb
      create config/boot.rb
      create config/environments/production.rb
      create config/environments/development.rb
      create config/environments/test.rb
      create script/about
      create script/console
      create script/dbconsole
      create script/destroy
      create script/generate
      create script/runner
      create script/server
      create script/plugin
      create script/performance/benchmarker
      create script/performance/profiler
      create test/test_helper.rb
      create test/performance/browsing_test.rb
      create public/404.html
      create public/422.html
      create public/500.html
      create public/index.html
      create public/favicon.ico
      create public/robots.txt
      create public/images/rails.png
      create public/javascripts/prototype.js
      create public/javascripts/effects.js
      create public/javascripts/dragdrop.js
      create public/javascripts/controls.js
      create public/javascripts/application.js
      create doc/README_FOR_APP
      create log/server.log
      create log/production.log
      create log/development.log
      create log/test.log
[root@QZI-PC rubytest]# ls
test

Update to latest RubyGems (1.8.13) and do:

gem pristine --all

Luis Lavena wrote in post #1038148:

How can I solve the problem "invalid gemspec"?

[root@-PC rubytest]# rails test
Invalid gemspec in
[/usr/lib/ruby/gems/1.8/specifications/activemodel-3.2.0.rc1.gemspec]:
Illformed requirement ["#<YAML::Syck::DefaultKey:0xb664a594> 3.2.0.rc1"]
Invalid gemspec in
[/usr/lib/ruby/gems/1.8/specifications/actionpack-3.2.0.rc1.gemspec]:

Update to latest RubyGems (1.8.13) and do:

gem pristine --all

--
Luis Lavena

next follow your replay !

[root@-PC rubytest]# rails test5
Invalid gemspec in
[/usr/lib/ruby/gems/1.8/specifications/activemodel-3.2.0.rc1.
gemspec]: Illformed requirement ["#<YAML::Syck::DefaultKey:0xb664a594>
3.2.0.rc1
"]
Invalid gemspec in
[/usr/lib/ruby/gems/1.8/specifications/tilt-1.3.3.gemspec]: i
nvalid date format in specification: "2011-08-25 00:00:00.000000000Z"
Invalid gemspec in
[/usr/lib/ruby/gems/1.8/specifications/actionpack-3.2.0.rc1.g
emspec]: Illformed requirement ["#<YAML::Syck::DefaultKey:0xb668700c>
3.2.0.rc1"
]
Invalid gemspec in
[/usr/lib/ruby/gems/1.8/specifications/json-1.6.1.gemspec]: i
nvalid date format in specification: "2011-09-18 00:00:00.000000000Z"
Invalid gemspec in
[/usr/lib/ruby/gems/1.8/specifications/dm-serializer-1.2.1.ge
mspec]: invalid date format in specification: "2011-10-24
00:00:00.000000000Z"
Invalid gemspec in
[/usr/lib/ruby/gems/1.8/specifications/railties-3.2.0.rc1.gem
spec]: Illformed requirement ["#<YAML::Syck::DefaultKey:0xb66cc79c>
3.2.0.rc1"]
Invalid gemspec in
[/usr/lib/ruby/gems/1.8/specifications/json_pure-1.6.1.gemspe
c]: invalid date format in specification: "2011-09-18
00:00:00.000000000Z"
      create
      create app/controllers
      create app/helpers
      create app/models
      create app/views/layouts
      create config/environments
      create config/initializers
      create config/locales
      create db
      create doc
      create lib
      create lib/tasks
      create log
      create public/images
      create public/javascripts
      create public/stylesheets
      create script/performance
      create test/fixtures
      create test/functional
      create test/integration
      create test/performance
      create test/unit
      create vendor
      create vendor/plugins
      create tmp/sessions
      create tmp/sockets
      create tmp/cache
      create tmp/pids
      create Rakefile
      create README
      create app/controllers/application_controller.rb
      create app/helpers/application_helper.rb
      create config/database.yml
      create config/routes.rb
      create config/locales/en.yml
      create db/seeds.rb
      create config/initializers/backtrace_silencers.rb
      create config/initializers/inflections.rb
      create config/initializers/mime_types.rb
      create config/initializers/new_rails_defaults.rb
      create config/initializers/session_store.rb
      create config/initializers/cookie_verification_secret.rb
      create config/environment.rb
      create config/boot.rb
      create config/environments/production.rb
      create config/environments/development.rb
      create config/environments/test.rb
      create script/about
      create script/console
      create script/dbconsole
      create script/destroy
      create script/generate
      create script/runner
      create script/server
      create script/plugin
      create script/performance/benchmarker
      create script/performance/profiler
      create test/test_helper.rb
      create test/performance/browsing_test.rb
      create public/404.html
      create public/422.html
      create public/500.html
      create public/index.html
      create public/favicon.ico
      create public/robots.txt
      create public/images/rails.png
      create public/javascripts/prototype.js
      create public/javascripts/effects.js
      create public/javascripts/dragdrop.js
      create public/javascripts/controls.js
      create public/javascripts/application.js
      create doc/README_FOR_APP
      create log/server.log
      create log/production.log
      create log/development.log
      create log/test.log
[root@-PC rubytest]# gem -v
Invalid gemspec in
[/usr/lib/ruby/gems/1.8/specifications/activemodel-3.2.0.rc1.gemspec]:
Illformed requirement ["#<YAML::Syck::DefaultKey:0xb664a594> 3.2.0.rc1"]
Invalid gemspec in
[/usr/lib/ruby/gems/1.8/specifications/tilt-1.3.3.gemspec]: invalid date
format in specification: "2011-08-25 00:00:00.000000000Z"
Invalid gemspec in
[/usr/lib/ruby/gems/1.8/specifications/actionpack-3.2.0.rc1.gemspec]:
Illformed requirement ["#<YAML::Syck::DefaultKey:0xb668700c> 3.2.0.rc1"]
Invalid gemspec in
[/usr/lib/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
[/usr/lib/ruby/gems/1.8/specifications/dm-serializer-1.2.1.gemspec]:
invalid date format in specification: "2011-10-24 00:00:00.000000000Z"
Invalid gemspec in
[/usr/lib/ruby/gems/1.8/specifications/railties-3.2.0.rc1.gemspec]:
Illformed requirement ["#<YAML::Syck::DefaultKey:0xb66cc79c> 3.2.0.rc1"]
Invalid gemspec in
[/usr/lib/ruby/gems/1.8/specifications/json_pure-1.6.1.gemspec]: invalid
date format in specification: "2011-09-18 00:00:00.000000000Z"
1.8.13

Seems gemspec didn't regenerate

Please use gem install activemodel -v 3.2.0.rc1

Or do "gem pristine activemodel"

If you need more details on this, please read this.

http://blog.rubygems.org/2011/08/31/shaving-the-yaml-yak.html

Have you updated RubyGems?

gem update --system

What is the output of "gem env"?

I had test the command follow last night !

gem install activemodel --pre

issue is still …

But I had reinstall all and work fine now !

After doing the pristine rebuild, I still received one persistent
gemspec error from dm-serializer. The problem was that gems couldn't
find the gem if I tried to rebuild it.

So I did this and it fixed it the last remaining error:

sudo gem install dm-serializer

- Bash