ruby/rubygems · error · InvalidOption

--rubocop has been removed, use --linter=rubocop

Error message

--rubocop has been removed, use --linter=rubocop

What it means

Error "--rubocop has been removed, use --linter=rubocop" thrown in ruby/rubygems.

Source

Thrown at lib/bundler/cli.rb:596

    desc "gem NAME [OPTIONS]", "Creates a skeleton for creating a rubygem"
    method_option :exe, type: :boolean, default: false, aliases: ["--bin", "-b"], banner: "Generate a binary executable for your library."
    method_option :coc, type: :boolean, banner: "Generate a code of conduct file. Set a default with `bundle config set --global gem.coc true`."
    method_option :edit, type: :string, aliases: "-e", required: false, lazy_default: [ENV["BUNDLER_EDITOR"], ENV["VISUAL"], ENV["EDITOR"]].find {|e| !e.nil? && !e.empty? }, banner: "Open generated gemspec in the specified editor (defaults to $EDITOR or $BUNDLER_EDITOR)"
    method_option :ext, type: :string, banner: "Generate the boilerplate for C extension code.", enum: EXTENSIONS
    method_option :git, type: :boolean, default: true, banner: "Initialize a git repo inside your library."
    method_option :mit, type: :boolean, banner: "Generate an MIT license file. Set a default with `bundle config set --global gem.mit true`."
    method_option :rubocop, type: :boolean, banner: "Add rubocop to the generated Rakefile and gemspec. Set a default with `bundle config set --global gem.rubocop true` (removed)."
    method_option :changelog, type: :boolean, banner: "Generate changelog file. Set a default with `bundle config set --global gem.changelog true`."
    method_option :test, type: :string, lazy_default: Bundler.settings["gem.test"] || "", aliases: "-t", banner: "Use the specified test framework for your library", enum: %w[rspec minitest test-unit], desc: "Generate a test directory for your library, either rspec, minitest or test-unit. Set a default with `bundle config set --global gem.test (rspec|minitest|test-unit)`."
    method_option :ci, type: :string, lazy_default: Bundler.settings["gem.ci"] || "", enum: %w[github gitlab circle], banner: "Generate CI configuration, either GitHub Actions, GitLab CI or CircleCI. Set a default with `bundle config set --global gem.ci (github|gitlab|circle)`"
    method_option :linter, type: :string, lazy_default: Bundler.settings["gem.linter"] || "", enum: %w[rubocop standard], banner: "Add a linter and code formatter, either RuboCop or Standard. Set a default with `bundle config set --global gem.linter (rubocop|standard)`"
    method_option :github_username, type: :string, default: Bundler.settings["gem.github_username"], banner: "Set your username on GitHub", desc: "Fill in GitHub username on README so that you don't have to do it manually. Set a default with `bundle config set --global gem.github_username <your_username>`."
    method_option :bundle, type: :boolean, default: Bundler.settings["gem.bundle"], banner: "Automatically run `bundle install` after creation. Set a default with `bundle config set --global gem.bundle true`"

    def gem(name)
      require_relative "cli/gem"

      raise InvalidOption, "--rubocop has been removed, use --linter=rubocop" if ARGV.include?("--rubocop")
      raise InvalidOption, "--no-rubocop has been removed, use --no-linter" if ARGV.include?("--no-rubocop")

      cmd_args = args + [self]
      cmd_args.unshift(options)

      Gem.new(*cmd_args).run
    end

    def self.source_root
      File.expand_path("templates", __dir__)
    end

    desc "clean [OPTIONS]", "Cleans up unused gems in your bundler directory"
    method_option "dry-run", type: :boolean, default: false, banner: "Only print out changes, do not clean gems"
    method_option "force", type: :boolean, default: false, banner: "Forces cleaning up unused gems even if Bundler is configured to use globally installed gems. As a consequence, removes all system gems except for the ones in the current application."
    def clean
      require_relative "cli/clean"
      Clean.new(options.dup).run

View on GitHub (pinned to 86cbb817a3)

When it happens

Trigger: Thrown at lib/bundler/cli.rb:596 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/c66d608722bd8ccd. Report an issue: GitHub.