Configured SD card path in emulator is null - Windows Phone 8.1 (runtime)

[admin]

I am very much confused with WP 8.1 (runtime) SD card access. I am trying to create a folder in WP 8.1 (Runtime) Sd Card, but unable to do so. I am following <a href="https://msdn.microsoft.com/en-us/library/windows/apps/xaml/dn611857.aspx" rel="nofollow">MSDN</a> tutorial to access sd card in WinRT. I need SD card access in order to store my App's backup &amp; log folders. By following <a href="https://monkeyweekend.wordpress.com/2014/12/09/write-a-file-to-the-sd-card-on-windows-phone-8-1/" rel="nofollow">this</a> tutorial I configured sd card path in emulator and I am using below code to access that path.

 private async Task<string> AsyncExternalStoragePath()
 {
   // Get the logical root folder for all external storage devices.
   Windows.Storage.StorageFolder externalDevices = Windows.Storage.KnownFolders.RemovableDevices;

   // Get the first child folder, which represents the SD card.
   StorageFolder sdCard = (await externalDevices.GetFoldersAsync().AsTask().ConfigureAwait(false)).FirstOrDefault();


 }

externalDevices.Path

returns empty string instead of returning the path which I configured. I enabled

RemovableStorage

under

Capabilities

and added

FileTypeAssociations

. But honestly this

FileTypeAssociations

are very much confusing to me. I read many articles, but I am not yet clarified fully.

Basically I want two folders and one file under my app name folder.

AppnameFolder -> BackupFolder, LogFolder, Infile

Under each folder

Backup -> To keep last five backup files (.db)
Log -> To create log files per day basis (.txt)
inifile -> To enable logging

If I know how to create a custom folder (app name folder) in sd card, I would create sub-folders (backup, log) easily. But right now I am stuck in getting the root path.

<strong>Edit</strong>: Deadlock problem got solved by adding

ConfigureAwait(false)

in async call as suggested in comment, but sdcard path is still null, How can I get path and create folder there?