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How do I fix Rubygems recent deprecation warning?

I have recently run updates:

gem update --system
gem update

Now, I come with a lot of deprecation warnings each time I load a gem. For example, rails console:

NOTE: Gem::Specification#default_executable= is deprecated with no replacement. It will be removed on or after 2011-10-01.
Gem::Specification#default_executable= called from /Users/user/.rvm/gems/ruby-1.9.2-p180@global/specifications/rake-0.8.7.gemspec:10.
NOTE: Gem::Specification#default_executable= is deprecated with no replacement. It will be removed on or after 2011-10-01.
Gem::Specification#default_executable= called from /Users/user/.rvm/gems/ruby-1.9.2-p180@global/specific开发者_开发问答ations/rake-0.8.7.gemspec:10.
NOTE: Gem::Specification#default_executable= is deprecated with no replacement. It will be removed on or after 2011-10-01.
Gem::Specification#default_executable= called from /Users/user/.rvm/gems/ruby-1.9.2p180@global/specifications/rake-0.8.7.gemspec:10.
Loading development environment (Rails 3.0.7)
ruby-1.9.2-p180 :001 > exit

I use RVM, Ruby 1.9.2 and Rubygems 1.8.1. Any way to get around this problem? Revert to an older version of rubygems?


I had to downgrade to 1.6.2. Those notices are absolutely ridiculous. They make the latest version completely unusable. There should really be a way to disable them, but until then:

sudo gem update --system 1.6.2


see here http://ryenus.tumblr.com/post/5450167670/eliminate-rubygems-deprecation-warnings

for short, run

gem pristine --all --no-extensions

ruby -e "`gem -v 2>&1 | grep called | sed -r -e 's#^.*specifications/##' -e 's/-[0-9].*$//'`.split.each {|x| `gem pristine #{x} -- --build-arg`}"

if the backtick (or backquote) doesn't work for you, as @jari-jokinen has pointed out (thank you!) in some cases, replace the second line with this

ruby -e "%x(gem -v 2>&1 | grep called | sed -r -e 's#^.*specifications/##' -e 's/-[0-9].*$//').split.each {|x| %x(gem pristine #{x} -- --build-arg)}"

Note: If your using Bundler in a production environment your offending gems will have been cached to shared/bundle so you'll need to run these commands using bundle exec


You can also use the more RVM specific rvm rubygems current to get back to a safer version of gem (1.6.2 right now).


I took other peoples' answers and scriptified them into something a little more worky for me. I still had to delete a couple by hand out of /usr/local/cellar.

#!/usr/bin/env bash
#

brew install gnu-sed
sudo gem pristine --all --no-extensions
gems=$(gem -v 2>&1 | grep called | gsed -r -e 's#^.*specifications/##' -e 's/-[0-9].*$//')

for gem in $gems
do
  echo Fixing $gem...
  sudo gem pristine $gem -- -build-arg
done


I can confirm that 1.8.10 has removed these deprecation warnings in a Rails 3.1 environment as well.

Simply run

gem update --system


Installing rubygems version 1.8.4 gets rid of the gem spec deprecation warnings:

$ gem update --system

=== 1.8.4 / 2011-05-25

  • 1 minor enhancement:

    • Removed default_executable deprecations from Specification.


Run this command sudo gem pristine --all --no-extensions

to remove all those warning messages.


Simpler: Add the following to environment.rb

ActiveSupport::Deprecation.silenced = true


Preferred solution

Use this, a courtesy of gmarik's gist:

.bashrc:

if [ -d "$HOME/.ruby/lib/" ]; then
  RUBYLIB="$RUBYLIB:$HOME/.ruby/lib"
  RUBYOPT="-rno_deprecation_warnings_kthxbye"
  export RUBYLIB RUBYOPT
fi

~/.ruby/lib/no_deprecation_warnings_kthxbye.rb

begin
require 'rubygems'
Gem::Deprecate.skip = true if defined?(Gem::Deprecate)
rescue LoadError => e
  p e
end

Fall-back solution

Use it when:

  • you use RVM and keep gems in ~
  • you can't use $RUBYLIB because your IDE ignores it when running unit tests
  • you can't upgrade to the latest Rubygems because of some old, unmaintained gems in Gemfile

Modify rubygems/deprecate.rb:

def self.skip # :nodoc:
  @skip ||= true
end


I tried all the above options but nothing worked.

Finally, I uninstalled Ruby and all dependencies, installed RVM using the link https://rvm.io/rvm/install, and reinstalled Ruby using rvm install ruby.

Things started working fine!


It looks like you're ok, It is just a warning where rake-0.8.7.gemspec will not meet new standard of RubyGems.

I'm sure rake's creator will get this sync.


Found that it was coming from Gem::Version.correct?(nil) so grep for that


SlimGems might be a solution as well.

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