database already exists please choose a different name

Here's the case I created this Permias.mdf on another solution that I had and then after that I decided not to use that solution and created a new website from visual studio and copy and paste the .mdf file to be used for this website.

Database 'C:\\Permias.mdf' already exists. Choose a different database nam开发者_如何学Pythone.

I think I finally understand what is happening:

You have project A, and it uses physical file C:\Permias.mdf.

Now, you have project B, and you'd like to use C:\Permias.mdf, so you paste it again in Visual Studio explorer - but, it already physically exists.

Is this correct? If so, you have some options:

• Include the Permias.mdf into your Project B by right-clicking your solution root in the Solution Explorer, and click 'Add Existing File'.

• Rename Permias.mdf to something else, or put it in a different folder/location, and make sure to update all references in your code.

Choose a different database name.

EDIT: Kidding! (Sort of.)