用oss上传本地文件提示路径错误

本人小白 请各位大神指教一下 我在vs里面连接oss然后上传本地文件为什么会一直提示路径错误呀

using System;
using System.IO;
using System.Threading;
using Aliyun.OSS.Common;
using System.Text;
using Aliyun.OSS.Util;
using System.Security.Cryptography;

namespace Aliyun.OSS.Samples
{
    /// <summary>
    /// Sample for putting object.
    /// </summary>
    public static class PutObjectSample
    {
        static string accessKeyId = "*** ";
        static string accessKeySecret = "*** ";
        static string endpoint = "*** ";
        static OssClient client = new OssClient(endpoint, accessKeyId, accessKeySecret);

        static string fileToUpload = "‪D:\\abc\\1.txt";

        static AutoResetEvent _event = new AutoResetEvent(false);
        static HashAlgorithm hashAlgorithm = new MD5CryptoServiceProvider();

        /// <summary>
        /// sample for put object to oss
        /// </summary>
        public static void PutObject(string bucketName)
        {
            PutObjectFromFile(bucketName);


        }

        public static void PutObjectFromFile(string bucketName)
        {
            const string key = "PutObjectFromFile"; 
            try
            {
                client.PutObject(bucketName, key, fileToUpload);
                Console.WriteLine("Put object:{0} succeeded", key);
            }
            catch (OssException ex)
            {
                Console.WriteLine("Failed with error code: {0}; Error info: {1}. \nRequestID:{2}\tHostID:{3}",
                    ex.ErrorCode, ex.Message, ex.RequestId, ex.HostId);
            }
            catch (Exception ex)
            {
                Console.WriteLine("Failed with error info: {0}", ex.Message);
            }
        }


    }
}