并非所有代码路径都返回值？ 需要帮助

Question

I am making ac# console board game and I am having trouble trying to sort out this error that is currently linked to the static int ResetGame() part. Apparently not all code paths return a value. How do I fix this?

static int ResetGame()

{
    Console.WriteLine("Welcome to Tactical Space Cheese Racer");
    Console.WriteLine("");
    Console.WriteLine("Press any Key to continue");
    Console.ReadLine();
    Console.Clear();
    Console.WriteLine("Please enter the number of players that wish to play (2-4) : ");
    int NoOfPlayers = int.Parse(Console.ReadLine());
    Console.WriteLine("");

    for (int i = 0; i < NoOfPlayers; i++)
    {
        Console.WriteLine("");
        Console.WriteLine("Please enter the name of the player: " + i + i++);
        Console.WriteLine("");
        players[i].Name = Console.ReadLine();
        players[i].Pos = 0;
    }
}

I have more code available if you need to see it to resolve the problem

Answer 1

The problem you have is that your method should return an int and you don't return it.

If you don't want to return anything, then you should state that your method is a void method.

static void ResetGame()  
{

}

As I can conclude from your code, this might was your intention. So making your method a void one, you will not have any problem.

Furthermore, I have to make a side note about the way you set the number of players. If the user enters a non integere value you will get an exception, that you don't handle. In addition to this, if the user enters an integer greater than 4, that shouldn't be ok. That being said you should take care both of the above.

int numberOfPlayers = -1;
Console.WriteLine("Please enter the number of players that wish to play (2-4) : ");

// The method Int32.TryParse parses the input and check if it 
// can be represented as a 32-bit integer number.
// If parse succeeds, then the value is assigned to numberOfPlayers 
// and the method returns true. Otherwise, it returns false.
while(!Int32.TryParse(Console.ReadLine()), out numberOfPlayers) && 
      !(numberOfPlayers>2 && numberOfPlayers<4))
{
    Console.WriteLine("Please enter a valid number between (2-4): ");
}

update

Idle_Mind pointed out in his comment the following:

I would say he needs to Return the Number of Players.

If that's the case, you just simple have to add this before the closing curly brace of your method:

return numberOfPlayers;

I suppose that you will keep my naming. If you will keep yours just change the name of the variable to yours.