将字符串写入文件会导致C#中出现异常

using System;
using System.IO;

class Program
{
    static void Main()
    {
        string filePath = "example.txt";
        string text = "Hello, World!";

        try
        {
            File.WriteAllText(filePath, text);
        }
        catch (Exception ex)
        {
            Console.WriteLine($"Error writing to file: {ex.Message}");
        }
    }
}