ruby/rubygems · error · Bundler::GemfileError

4

4

Error message

`#{gem_name}` is not specified in #{gemfile_path} so it could not be removed.

What it means

Error "`#{gem_name}` is not specified in #{gemfile_path} so it could not be removed." thrown in ruby/rubygems.

Source

Thrown at lib/bundler/injector.rb:172

      # check for errors
      # including extra gems being removed
      # or some gems not being removed
      # and return the actual removed deps
      cross_check_for_errors(gemfile_path, builder.dependencies, removed_deps, initial_gemfile)
    end

    # @param [Dsl]      builder Dsl object of current Gemfile.
    # @param [Array]    gems Array of names of gems to be removed.
    # @param [Pathname] gemfile_path Path of the Gemfile.
    # @return [Array]   Array of removed dependencies.
    def remove_gems_from_dependencies(builder, gems, gemfile_path)
      removed_deps = []

      gems.each do |gem_name|
        deleted_dep = builder.dependencies.find {|d| d.name == gem_name }

        if deleted_dep.nil?
          raise GemfileError, "`#{gem_name}` is not specified in #{gemfile_path} so it could not be removed."
        end

        builder.dependencies.delete(deleted_dep)

        removed_deps << deleted_dep
      end

      removed_deps
    end

    # @param [Array] gems            Array of names of gems to be removed.
    # @param [Pathname] gemfile_path The Gemfile from which to remove dependencies.
    def remove_gems_from_gemfile(gems, gemfile_path)
      patterns = /gem\s+(['"])#{Regexp.union(gems)}\1|gem\s*\((['"])#{Regexp.union(gems)}\2.*\)/
      new_gemfile = []
      multiline_removal = false
      File.readlines(gemfile_path).each do |line|
        match_data = line.match(patterns)

View on GitHub (pinned to 86cbb817a3)

When it happens

Trigger: Thrown at lib/bundler/injector.rb:172 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/573f9b0cfbf71fef. Report an issue: GitHub.