KelseyAnne on "Test environment runs new WordPress site rather than existing site"

I am trying to create a test WordPress site for an existing WordPress site. I copied the existing site into Visual Studio. I downloaded MySQL and then installed Wordpress, using the famous 5 Minute Install: https://codex.wordpress.org/Installing_WordPress#Famous_5-Minute_Install

Now when I run the site in my browser, I get a completely new wordpress site even though the original site's folders are still listed in the Solution Explorer.

I also get the error: "No directory mapping established" in the "Output" panel when I run the site in the browser.

I've been trying to figure this out for the last few hours and I am no closer to finding a solution or resource to find a solution.

I would really appreciate any help with this.

Thanks!

Kelsey