title: c# Unit Testing errors
body: <p>im trying to get familiar with unit testing , but I keep getting this annoying error and I have no idea why. I made a class that just divides 2 numbers.</p>
  
  <pre><code>using System;
  using System.Collections.Generic;
  using System.Linq;
  using System.Text;
  using System.Threading.Tasks;
  
  namespace DivideNum
  {
      class Program
      {
          public static int doStuff(int num1, int num2)
          {
              int result = num1 / num2;
              return result;
  
  
          }
          static void Main(string[] args)
          {
  
          }
      }
  }
  </code></pre>
  
  <p>I then made my unit test </p>
  
  <pre><code>using DivideNum;
  using System;
  using Microsoft.VisualStudio.TestTools.UnitTesting;
  
  namespace UnitTestProject1
  {
      [TestClass]
      public class UnitTest1
      {
          [TestMethod]
          public void TestMethod1()
          {
  
              //arrange
              int a = 10;
              int b = 2;
              int result = 5;
  
              //act
  
          }
      }
  }
  </code></pre>
  
  <p>i added a reference to my DivideNum namespace and added using DivideNum , but i still cant get a reference to the DivideNum class in my testing class. It wont show up at all in my testing code. why cant i use my DivideNum class in my Test class?</p>