Need help for challenge task 2 of 2 on the section swift collections and control Flow, please help.

Now that we have the while loop set up, it's time to compute the sum! Using the value of counter as an index value, retrieve each value from the array and add it to the value of sum.

For example: sum = sum + newValue. Or you could use the compound addition operator sum += newValue where newValue is the value retrieved from the array.

I've seen plenty answers from those who have asked the same question before and none of the answers worked for me.

ex:

while(counter < numbers.count){ sum += numbers[counter] counter++ }

or

while counter < numbers.count { counter += 1 sum = sum + numbers[counter-1]

}

or

while counter < numbers.count { sum = sum + numbers[counter] counter++ }

or

while counter < numbers.count { sum = sum + counter[numbers] counter += 1 }

none of these worked when I entered them to submit the challenge...

let numbers = [2,8,1,16,4,3,9]
var sum = 0
var counter = 0

// Enter your code below

while counter < numbers.count {
print(numbers.count)
counter += 1
}

while(counter < numbers.count} {
sum = sum + numbers[counter] 
counter += 1
}