ruby/rubygems · error · Bundler::CorruptBundlerInstallError

39

39

Error message

The running version of Bundler (#{Bundler::VERSION}) does not match the version of the specification installed for it (#{@loaded_spec.version}). This can be caused by reinstalling Ruby without removing previous installation, leaving around an upgraded default version of Bundler. Reinstalling Ruby from scratch should fix the problem.

What it means

Error "The running version of Bundler (#{Bundler::VERSION}) does not match the version of the specification installed for it (#{@loaded_spec.version}). This can be caused by reinstalling Ruby without removing previous installation, leaving around an upgraded default version of Bundler. Reinstalling Ruby from scratch should fix the problem." thrown in ruby/rubygems.

Source

Thrown at lib/bundler/source/metadata.rb:14

# frozen_string_literal: true

module Bundler
  class Source
    class Metadata < Source
      def specs
        @specs ||= Index.build do |idx|
          idx << Gem::Specification.new("Ruby\0", Bundler::RubyVersion.system.gem_version)
          idx << Gem::Specification.new("RubyGems\0", Gem::VERSION) do |s|
            s.required_rubygems_version = Gem::Requirement.default
          end

          if local_spec = Gem.loaded_specs["bundler"]
            raise CorruptBundlerInstallError.new(local_spec) if local_spec.version.to_s != Bundler::VERSION

            idx << local_spec
          else
            idx << Gem::Specification.new do |s|
              s.name     = "bundler"
              s.version  = VERSION
              s.license  = "MIT"
              s.platform = Gem::Platform::RUBY
              s.authors  = ["bundler team"]
              s.bindir   = "exe"
              s.homepage = "https://bundler.io"
              s.summary  = "The best way to manage your application's dependencies"
              s.executables = %w[bundle bundler]
              s.loaded_from = SharedHelpers.gemspec_path
            end
          end

          idx.each {|s| s.source = self }

View on GitHub (pinned to 86cbb817a3)

When it happens

Trigger: Thrown at lib/bundler/source/metadata.rb:14 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of ruby/rubygems@86cbb817a3 (2026-08-23). Data as JSON: /api/errors/b698005dab868eb7. Report an issue: GitHub.