OSS求助，GetObject在Unity中使用空指针异常

如题，我将2.3的DLL放在Unity(4.6和5.4)中测试使用，和demo中使用同样的代码和高权限用户参数(这里我保证参数正确)，当调用到GetObject会出现错误；在demo中运行正常。。



    public static void GetObject()
    {
        try
        {
            //client.PutObject(bucketName, key, fileToUpload);
            var client = new OssClient("http://oss-cn-shanghai.aliyuncs.com", "参数", "参数");
            var result = client.GetObject("参数", "参数"); //在这里出错


            using (var requestStream = result.Content)
            {
                using (var fs = File.Open("C:/Users/Administrator/Desktop" + "/DataGetTemplateR.json", FileMode.OpenOrCreate))
                {
                    int length = 4 * 1024;
                    var buf = new byte[length];
                    do
                    {
                        length = requestStream.Read(buf, 0, length);
                        fs.Write(buf, 0, length);
                    } while (length != 0);
                }
            }
        }
        catch (OssException ex)
        {
            Debug.Log("Failed with error code: " + ex.ErrorCode + "; Error info: " + ex.Message + "\nRequestID:" + ex.RequestId + "\tHostID:{3}" +ex.HostId);
        }
    }


错误信息如下:





NullReferenceException: Object reference not set to an instance of an object
Aliyun.OSS.Common.Communication.HttpExtensions.AddInternal (System.Net.WebHeaderCollection headers, System.String key, System.String value)
Aliyun.OSS.Common.Communication.HttpFactory.SetRequestHeaders (System.Net.HttpWebRequest webRequest, Aliyun.OSS.Common.Communication.ServiceRequest serviceRequest, Aliyun.OSS.Common.ClientConfiguration configuration)
Aliyun.OSS.Common.Communication.HttpFactory.CreateWebRequest (Aliyun.OSS.Common.Communication.ServiceRequest serviceRequest, Aliyun.OSS.Common.ClientConfiguration configuration)
Aliyun.OSS.Common.Communication.ServiceClientImpl.SendCore (Aliyun.OSS.Common.Communication.ServiceRequest serviceRequest, Aliyun.OSS.Common.Communication.ExecutionContext context)
Aliyun.OSS.Common.Communication.ServiceClient.Send (Aliyun.OSS.Common.Communication.ServiceRequest request, Aliyun.OSS.Common.Communication.ExecutionContext context)
Aliyun.OSS.Common.Communication.RetryableServiceClient.SendImpl (Aliyun.OSS.Common.Communication.ServiceRequest request, Aliyun.OSS.Common.Communication.ExecutionContext context, Int32 retryTimes)