UWP Unable to register app for Windows Store relea

问题:

I have a C# app targeting UWP Desktop & Mobile platforms. I want to run WACK tests prior to submitting app to store. I am trying to create app package by following the steps mentioned in this MSDN page
When ever I try to reserve a name for my app, I am getting the following error:

An unexpected error occurred when attempting to reserve the app name

Since the error info is not very useful, I am clueless as to what is going wrong.
I tried with several different name but every time I get the same error.
I do not thing there is any issue with my account as I am able to login using my credentials as I see this message in VS-2015: "You are signed into Windows Store as [e-mail]" This is a business account. Several members of my team use this common account to register new apps on behalf of the company.
I have checked this MSDN Forum page. I followed steps mentioned in the solution, unfortunately Microsoft Application Registration Portal doesnt seem to recognize my account [e-mail]

回答1:

When ever I try to reserve a name for my app, I am getting the following error: An unexpected error occurred when attempting to reserve the app name

You will get this error when the name you are preserving has been reserved by someone.

According to first paragraph of Create your app by reserving a name:

Each reserved name must be unique throughout the entire Store.

You can check the availability of your app name by:

Logging in to DashBoard->Create a new App->Check availability.