Why the code below generate error (cs1061), when I run it in solo learn, but it is ok when I run it in my laptop?

Question

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SoloLearn
{
class Program
{
static void Main(string[] args)
{
int discount = Convert.ToInt32(Console.ReadLine());

Dictionary<string, int> coffee = new Dictionary<string, int>();
coffee.Add("Americano", 50);
coffee.Add("Latte", 70);
coffee.Add("Flat White", 60);
coffee.Add("Espresso", 60);
coffee.Add("Cappuccino", 80);
coffee.Add("Mocha", 90);

//your code goes here

int r;
double d;

foreach(string c in coffee.keys)
{
d=(double)discount/100;

r=(Int32)((1-d)*coffee[c]);
Console.WriteLine("{0}: {1}", c, r);
}

}
}
}

Answer 1

Please, copy the code to the playground, save it and post the link to it.

Answer 2

Budiman Budiman

There should be 'k' Caps in keys it's Keys