Google.GoogleApiException未被用户代码处理

Question

我无法使用服务凭据模型连接到Google Apps转销商API（适用于.NET）。

关于我哪里出错的任何想法？

步骤：

1. 在Google开发者控制台中创建服务应用程序
2. 启用的API（Admin SDK; BigQuery API; Debuglet控制器API;企业版;许可证管理器API; Google Apps转销商API; Google Cloud Logging API; Google Cloud SQL; Google云端存储; Google云端存储JSON API;网站验证API）
3. 在Google应用域（转销商域）
上创建了API权限

来源：

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应用程序错误：

using Google.Apis.Auth.OAuth2;
using Google.Apis.Reseller.v1;
using Google.Apis.Reseller.v1.Data;
using Google.Apis.Services;
using Google.Apis.Util.Store;
using System.IO;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Security.Cryptography.X509Certificates;
using Google.Apis.Auth.OAuth2;
using Google.Apis.Services;

namespace GoogleApiWeb
{
    public partial class _Default : Page
    {

        static string ApplicationName = "Testing API";
        protected void Page_Load(object sender, EventArgs e)
        {

            String serviceAccountEmail = "...removed...@developer.gserviceaccount.com";

            var certificate = new X509Certificate2(@"C:\\Dev\\GoogleApiWeb\\GoogleApiWeb\\TestingResellerAPI-6555.p12", "notasecret", X509KeyStorageFlags.Exportable);

            ServiceAccountCredential credential = new ServiceAccountCredential(
               new ServiceAccountCredential.Initializer(serviceAccountEmail)
               {
                   Scopes = new[] { ResellerService.Scope.AppsOrder }
               }.FromCertificate(certificate));

            // Create Google Apps Reseller API service.
            var service = new ResellerService(new BaseClientService.Initializer()
            {
                HttpClientInitializer = credential,
                ApplicationName = ApplicationName,
            });

            // Define parameters of request.
            SubscriptionsResource.ListRequest request = service.Subscriptions.List();
            request.MaxResults = 10;

            // List subscriptions.
            IList<Subscription> subscriptions = request.Execute().SubscriptionsValue;
            Response.Write("<p>Subscriptions:</p>");
            if (subscriptions != null && subscriptions.Count > 0)
            {
                foreach (var subscription in subscriptions)
                {
                    {
                        Response.Write(subscription.CustomerId.ToString());
                        Response.Write(": ");
                        Response.Write(subscription.SkuId.ToString());
                        Response.Write(" ");
                        Response.Write(subscription.Plan.PlanName.ToString());
                        Response.Write('\n');
                    }
                }
            }
            else
            {
                Response.Write("No subscriptions found.");
            }

        }
    }
}