How to avoid deprecation messages from RubyGems?

After gem update --system, when I do something related to rubygems, I receive this message:

NOTE: Gem::Specificat开发者_高级运维ion#default_executable= is deprecated with no replacement. It will be removed on or after 2011-10-01.

Gem::Specification#default_executable= called from /usr/lib/ruby/gems/1.8/specifications/rubygems-update-1.7.2.gemspec:11.

How can I avoid it? I've tried to remove rubygems and reinstall, but that didn't fix it.

You probably need to regenerate your gem specifications.

After installing RubyGems 1.8.1 you will see deprecations when loading your exsting gems. Run gem pristine --all --no-extensions to regenerate your gem specifications safely.

http://blog.segment7.net/2011/05/05/rubygems-1-8-1

Look where your rubygems are installed:

$ gem list -d rubygems

Find the deprecate.rb file there, and make the self.skip class method always return true.

or If you're using RVM, the following command will fix it:

rvm rubygems current

Regenerating gem specifications worked for me: sudo gem pristine --all --no-extensions

See: https://github.com/rubygems/rubygems/blob/master/History.txt

You can also downgrade your version of rubygems: sudo gem update --system 1.7.1