Thank you Hans,

Visual Studio 2013 Update 3 was missing.
After deleting the CrosslightDb.mdf everything is working as expected.

Why do I have to delete the database? Seems like I have to delete it every time.
Would it be better to use a real sql database?

Kind regards,
Fabian

Hello,

Thank you for the reply.

Basically, Intersoft WebAPI project use the standard ASP.Net identity database.
So (occasionally) Visual Studio will auto generate the standard database in our project. Visual studio will get the database’s name in project connection string (CrosslightDB.mdf).
But Intersoft wants to add a custom field to the standard database for project’s purpose.

In register user process, Intersoft project will create the new (custom) database and add the user data to the database.
However the creating / generating the new custom database process has failed, due to Visual Studio has created the database with the same name (CrosslightDB.mdf).

Currently, the developer team still investigates the way to resolve this issue.

Meanwhile, you could do the solution on my prior post if get the same issue while registering the new user.

Thank you for your understanding.

Regards,
Hans K.