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Home/ Questions/Q 4579754
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Editorial Team
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Editorial Team
Asked: May 21, 20262026-05-21T20:41:11+00:00 2026-05-21T20:41:11+00:00

After gem update –system , when I do something related to rubygems, I receive

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

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 /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.

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  1. Editorial Team
    Editorial Team
    2026-05-21T20:41:12+00:00Added an answer on May 21, 2026 at 8:41 pm

    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

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