title: Unit test check old compilations, dont see changes in code
body: <p>i am working in tic-tac-toe n and i got troble with test, It seems dont get update code, and always work with old compilations </p>
  
  <pre><code>[TestMethod]
      public void ComprobarVictoria_Medio_Juego()
      {
          testJugador = new Jugador("claudio", 0);
          testJuego = new Juego(new Tablero(4, 4));
  
          testJuego.participantes.Add(testJugador);
  
          testJugador.AsignarFicha(new Ficha("Negras", testJugador));
  
  
          Assert.IsTrue(testJuego.ComprobarGanadorMedio(0,0,0)); 
  
      }
  </code></pre>
  
  <p>this is the error that I have</p>
  
  <p><img src="https://i.stack.imgur.com/49FK0.png" alt="Screenshot of exception message"></p>
  
  <p>and now check the code </p>
  
  <pre><code>public bool ComprobarGanadorMedio(int a, int b, int c)
      {
          return true;
      }
  </code></pre>
  
  <p>I made the change method to return true, for check if the error was my code or the test, and continuous give me error in no exits line
  <a href="https://i.stack.imgur.com/vDhPo.png" rel="nofollow noreferrer">In line 30 and its empty</a></p>
  
  <p>it seems got the old code, and dont see changes.</p>
  
  <p>I try compile, debug... dont work,
  any ideas?</p>