RubyMoney/money · error · ArgumentError

must be initialized with a finite value

Error message

must be initialized with a finite value

What it means

Error "must be initialized with a finite value" thrown in RubyMoney/money.

Source

Thrown at lib/money/money.rb:370

  # @example
  #   Money.new(100)        #=> #<Money @fractional=100 @currency="USD">
  #   Money.new(100, "USD") #=> #<Money @fractional=100 @currency="USD">
  #   Money.new(100, "EUR") #=> #<Money @fractional=100 @currency="EUR">
  #
  def initialize(obj, currency = nil, options = {})
    # For backwards compatibility, if options is not a Hash, treat it as a bank parameter
    unless options.is_a?(Hash)
      options = { bank: options }
    end

    @fractional = as_d(obj.respond_to?(:fractional) ? obj.fractional : obj)
    @currency   = obj.respond_to?(:currency) ? obj.currency : Currency.wrap(currency)
    @currency ||= Money.default_currency
    @bank       = obj.respond_to?(:bank) ? obj.bank : options[:bank]
    @bank     ||= Money.default_bank

    # BigDecimal can be Infinity and NaN, money of that amount does not make sense
    raise ArgumentError, "must be initialized with a finite value" unless @fractional.finite?
    raise Currency::NoCurrency, "must provide a currency" if @currency.nil?
  end

  # DEPRECATED.
  #
  # @see #amount
  def dollars
    warn "[DEPRECATION] `Money#dollars` is deprecated in favor of " \
         "`Money#amount`."

    amount
  end

  # Returns the numerical value of the money.
  #
  # @return [BigDecimal]
  #
  # @example

View on GitHub (pinned to 26e2829c34)

When it happens

Trigger: Thrown at lib/money/money.rb:370 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of RubyMoney/money@26e2829c34 (2026-08-23). Data as JSON: /api/errors/886c5d7772732030. Report an issue: GitHub.