The code works. But besides that, there is an error. Why and how to fix it?

def make_casserole
    puts "Preheat oven to 375 degrees"
    ingredients = yield
    puts "Place #{ingredients} in dish"
    puts "Bake for 20 minutes"
end

make_casserole do 
  "noodles, celery, and tuna"
end

make_casserole do 
  "rice, broccoli, and chicken"
end

make_casserole

blocc.rb:31:in `make_casserole': no block given (yield) (LocalJumpError)from blocc.rb:45:in `<main>'

>Solution :

You must change the line ingredients = yield to ingredients = yield if block_given?. This is because you invoke the method without passing a block. The method cannot yield if no block given.