1. 确认AWS账户是否被授权使用QuickSight服务，并检查IAM用户的权限。
2. 确认QuickSight和S3等其他服务的区域是否相同，如果不同则修改区域。
3. 尝试使用不同的AWS凭据登录控制台，以确保凭据是否存在问题。
4. 确认create dataset方法中的参数是否正确，并检查数据源是否存在并且可被访问。
5. 如果问题仍然存在，可以将调用代码与AWS支持团队进行商讨，以获得更多的帮助和支持。下面是一个参考的C#代码示例，可以在Windows中调用Amazon QuickSight API创建数据集：

using Amazon;
using Amazon.Auth;
using Amazon.Auth.AccessControlPolicy;
using Amazon.Auth.AccessControlPolicy.ActionIdentifiers;
using Amazon.Runtime;
using Amazon.QuickSight;
using Amazon.QuickSight.Model;
using Amazon.Runtime.CredentialManagement;

// set the profile name to the AWS credentials previously setup
const string profileName = "default";

// region where the QuickSight account exists
const string Region = "us-east-1";

var options = new CredentialProfileOptions
{
    AccessKey = "AWS Access Key",
    SecretKey = "AWS Secret Key"
};

// Authenticate with the AWS SDK for .NET
var profile = new CredentialProfile(profileName, options)
{
    Region = Region
};

// Instantiate an Amazon QuickSight client with the authenticated profile
var sqsClient = new AmazonQuickSightClient(profile, RegionEndpoint.GetBySystemName(Region));

// Define the create dataset request
var createDataSetRequest = new CreateDataSetRequest
{
    AwsAccountId = "1234567890",
    DataSetId = "NewDataSet",
    ImportMode = ImportMode.SPIDER,
    PhysicalTableMap = new PhysicalTableMap
    {
        "new-table-name", new PhysicalTable
        {
            RelationalTable = new RelationalTable
            {
                DataSourceArn = "arn:aws:data_pipeline:us-east-1:123