ruby/rubygems · error · Gem::Exception

Unable to find '#{name}'

Error message

Unable to find '#{name}'

What it means

Error "Unable to find '#{name}'" thrown in ruby/rubygems.

Source

Thrown at lib/rubygems/source/specific_file.rb:36

    @path = ::File.expand_path(file)

    @package = Gem::Package.new @path
    @spec = @package.spec
    @name = @spec.name_tuple
  end

  ##
  # The Gem::Specification extracted from this .gem.

  attr_reader :spec

  def load_specs(*a) # :nodoc:
    [@name]
  end

  def fetch_spec(name) # :nodoc:
    return @spec if name == @name
    raise Gem::Exception, "Unable to find '#{name}'"
  end

  def download(spec, dir = nil) # :nodoc:
    return @path if spec == @spec
    raise Gem::Exception, "Unable to download '#{spec.full_name}'"
  end

  def pretty_print(q) # :nodoc:
    q.object_group(self) do
      q.group 2, "[SpecificFile:", "]" do
        q.breakable
        q.text @path
      end
    end
  end

  ##
  # Orders this source against +other+.

View on GitHub (pinned to 86cbb817a3)

Solutions

1. Check the path/name passed to the specific-file source; the file does not exist

When it happens

Trigger: Thrown at lib/rubygems/source/specific_file.rb:36 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/5ff92d0634b692ff. Report an issue: GitHub.