Can't find ProjectName.dll attach process for debugging of dotnet core api in vs code?

I am trying to debug dotnet core api in VS Code. But I can't find dotnet process to start debugging. Here is sceen shots.

First one is mine and Second one is i want. Here is mine which I am getting

And here is what I am looking for

You can see in my case I am getting dotnet.exe. But in below pic .dll. How can get this one. Please help because breakpoit did not hit in my case.