Windows Phone 8.1 UNHANDLED_EXCEPTION

 List<Person> friends = new List<Person>();
            StorageCredentials credential = new StorageCredentials(x, x);
            // Retrieve storage account from connection string.
            CloudStorageAccount storageAccount = new CloudStorageAccount(credential, true);
            // Create the blob client.
            CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient();
            // Retrieve reference to a previously created container.
            CloudBlobContainer container = blobClient.GetContainerReference("cryptochat");

当创建blob客户端在"CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient();"应用程序中断并输入这里:

 #if DEBUG && !DISABLE_XAML_GENERATED_BREAK_ON_UNHANDLED_EXCEPTION
            UnhandledException += (sender, e) =>
            {
                if (global::System.Diagnostics.Debugger.IsAttached) global::System.Diagnostics.Debugger.Break();
            };
#endif

例外:{"The argument 'ParallelOperationThreadCount' is larger than maximum of '64''r'nParameter name: ParallelOperationThreadCount"}这段代码在visual studio 2013中工作，然后我重新安装了windows 10并安装了2015年，现在它不起作用。这段代码可以在模拟器上运行，但不能在设备上运行。