ruby/rubygems · error · Gem::CommandLineError

Invalid email address #{email}

Error message

Invalid email address #{email}

What it means

Error "Invalid email address #{email}" thrown in ruby/rubygems.

Source

Thrown at lib/rubygems/commands/cert_command.rb:138

    options[:build].each do |email|
      build email
    end

    if options[:resign]
      re_sign_cert(
        options[:issuer_cert],
        options[:issuer_cert_file],
        options[:key]
      )
    end

    sign_certificates unless options[:sign].empty?
  end

  def build(email)
    unless valid_email?(email)
      raise Gem::CommandLineError, "Invalid email address #{email}"
    end

    key, key_path = build_key
    cert_path = build_cert email, key

    say "Certificate: #{cert_path}"

    if key_path
      say "Private Key: #{key_path}"
      say "Don't forget to move the key file to somewhere private!"
    end
  end

  def build_cert(email, key) # :nodoc:
    expiration_length_days = options[:expiration_length_days] ||
                             Gem.configuration.cert_expiration_length_days

    cert = Gem::Security.create_cert_email(

View on GitHub (pinned to 86cbb817a3)

When it happens

Trigger: Thrown at lib/rubygems/commands/cert_command.rb:138 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/dde64d743affc710. Report an issue: GitHub.