Where do I get the file I am using? (RUBY)

you forgot an i in initialize

In there Terminal you need to be in the directory that you save your bank_account.rb file to.

I have it already but now I am receiving this error on my terminal:

MacBook-Pro-de-MarceloRS:Desktop Marcelo$ ruby bank_account.rb

bank_account.rb:21:in initialize': wrong number of arguments (1 for 0) (ArgumentError) from bank_account.rb:21:innew' from bank_account.rb:21:in `<main>'

MacBook-Pro-de-MarceloRS:Desktop Marcelo$

and this is my code

class BankAccount

    def intialize(name)
        @transaction = []
        @balance = 0
    end

    def deposit
        print "how much would you like to deposit? "
        amount = gets.chomp
        @balance += amount.to_f
        puts "$#{amount} deposited."
    end

    def show_balance
        puts "your balance is #{@balance}"
    end

end

bank_account = BankAccount.new("Marcelo Retana")
bank_account.class # => BankAccount

bank_account.deposit
bank_account.show_balance

Your code still has the method initialize misspelled.

Right now, by convention (a crude simplification), Ruby is looking for a method called initialize to know what to do with a new call outside of the core ones defined in BasicObject, Object, or Kernel, what every object in Ruby inherits from.

By default, initialize as defined by likely the Kernel module accepts 0 arguments. Since Ruby saw the default initialize needing no arguments, but you passed one anyway, an exception happened.

Does this make sense, Marcelo?

I am also having issues. Every time that I run the bank_account.rb in my terminal, it's asks me for an amount to deposit. Once I enter an amount, I get the following message:

bank_account.rb:11:in `deposit': undefined method `+' for nil:NilClass (NoMethodError)
    from bank_account.rb:22:in `<class:BankAccount>'
    from bank_account.rb:1:in `<main>'

What am I doing wrong? Here is my code:

class BankAccount

  def initialize(name)
    @transactions = []
    balance = 0
  end

  def deposit
    print "How much would you like to deposit? "
    amount = gets.chomp
    @balance += amount.to_f
    puts "$#{amount} deposited."
  end

  def show_balance
    puts "Your balance is #{@balance}"
  end

  bank_account = BankAccount.new("Mason Goetz")
  bank_account.class # => BankAccount

  bank_account.deposit
  bank_account.show_balance
end

I know that there is no end after the bank_account.show_balance on the last line in the video, but when I ran the code without it in terminal I got this message:

bank_account.rb:23: syntax error, unexpected end-of-input, expecting keyword_end
  bank_account.show_balance
                           ^